This article introduces the concept of inversion as a rhetorical-political strategy used to redescribe climate concerns from being sacrificed in favour of profitability to seeing that profitability necessitates climate concerns. Drawing on discourse theory and rhetorical analysis, the article analyses discursive struggles in the dominant discourse of fossil-fuel growth in Norway, from 2013 to 2019. By inverting the image of fossil-fuel dependency from growth and success to loss and stagnation in the Norwegian public discourse on fossil fuels and climate risk, (...) those who challenge the hegemonic pro-fossil fuel-investments system pave the way for an alternative description of an ideal welfare state. As such, inversion, as a practice and rhetorical-political strategy may help us understand the strategic manoeuvring of the environmental movements as counter-hegemonic forces. (shrink)

Horseshoe crabs (Limulus polyphemus) have been in decline in Long Island Sound, and recently there has been discussion of whether the state of Connecticut should stop issuing licenses for commercial harvesting. This paper argues that in spite of concerns about the living fossil concept, the fact that the horseshoe crabs are living fossils should count in favor of more stringent protection. The paper distinguishes four different views about the status of the living fossil concept: 1) eliminativism; 2) redefinition; 3) reframing; (...) and 4) conceptual pluralism. Approaches 2–4 all treat the criteria associated with living fossils as picking out distinctive features of evolutionary history. Those distinctive features of evolutionary history link up with conservation values in several ways. More generally, drawing upon relevant work in environmental philosophy, it is argued that evolutionary history is relevant to aesthetic and environmental value. Moreover, eliminativists have trouble rendering intelligible a striking pattern in the recent scientific literature. Researchers undertaking conservation-relevant work frequently highlight the living fossil status of the taxa under study. (shrink)

In the early twentieth century, with the development of Western scientific imperialism, Asia, South America, and Africa became sites for Western scientific exploration. Many paleontological specimens, including dinosaur bones, were discovered in China by foreign scientists and explorers and exported to museums in France, Sweden, and the United States. After the establishment of the Nationalist Government in Nanjing in 1927, anti-imperialist Chinese intellectuals attempted to prevent foreigners from exporting specimens unearthed on Chinese territory. In the summer of 1928, the fossils (...) discovered in the Gobi Desert by the Central Asiatic Expedition of the American Museum of Natural History were detained in China. A series of negotiations ensued between Chinese and American diplomats and scientists over the issues of the ownership of fossils and the format of international scientific collaborations. By studying the interests and stakes for players in the different social worlds involved in the dispute, this essay explores the relations among science, diplomacy, and the politics of deep time. (shrink)

First, with respect to our personal relationship to fossil fuels, this chapter introduces arguments about whether we should or even can address our own usage of fossil fuels. This involves determining whether offsetting emissions is morally required and practically possible. Second, with respect to our relationship with fossil fuels at the national level, it discusses forms of local resistance, especially divestment and pipeline protesting. Finally, with respect to our relationship with fossil fuels at the international level, it considers two types (...) of policy. On the one hand, some have argued that we should stop most trade in oil, on the basis that most oil that is traded is not subject to the control of citizens. On the other hand, some have argued that we should price the costs of fossil fuels so that there are market incentives to avoid digging them out of the ground. (shrink)

Lately there has been a wave of criticism of the concept of living fossils. First, recent research has challenged the status of paradigmatic living fossil taxa, such as coelacanths, cycads, and tuataras. Critics have also complained that the living fossil concept is vague and/or ambiguous, and that it is responsible for misconceptions about evolution. This paper defends a particular phylogenetic conception of living fossils, or taxa that exhibit deep prehistoric morphological stability; contain few extant species; and make a high contribution (...) to phylogenetic diversity. The paper shows how this conception of living fossils can make sense of recent research on contested cases. The phylogenetic living fossil concept has both theoretical and practical importance: theoretical, because it picks out an important explanatory target for evolutionary theory; and practical, because it picks out taxa that we might wish to prioritize for conservation. The best way to defend the concept of living fossils is to get clearer about the reasons for defending living fossil taxa. (shrink)

Paleoneuranatomy is an emerging subfield of paleontological research with great potential for the study of evolution. However, the interpretation of fossilized nervous tissues is a difficult task and presently lacks a rigorous methodology. We critically review here cases of neural tissue preservation reported in Cambrian arthropods, following a set of fundamental paleontological criteria for their recognition. These criteria are based on a variety of taphonomic parameters and account for morphoanatomical complexity. Application of these criteria shows that firm evidence for fossilized (...) nervous tissues is less abundant and detailed than previously reported, and we synthesize here evidence that has stronger support. We argue that the vascular system, and in particular its lacunae, may be central to the understanding of many of the fossilized peri‐intestinal features known across Cambrian arthropods. In conclusion, our results suggest the need for caution in the interpretation of evidence for fossilized neural tissue, which will increase the accuracy of evolutionary scenarios. Also see the video abstract here: https://youtu.be/2_JlQepRTb0. (shrink)

Fossil fuel divestment movements have gained momentum since 2011, aimed at ending fossil fuel use and a move toward a cleaner, affordable, and sustainable energy system, for business and society. The present study investigates the direct impact of fossil fuel divestment announcements on stock prices of firms listed on the United States' stock exchanges. Using an event study and guided by the United Nation's sustainable development goals (SDGs), we test the effects of 116 divestments announcements between 2014 and 2019 on (...) 51 publicly traded fossil fuel companies. Our results suggest that there is a negative effect of these announcements on fossil fuel firm stock prices. Also, we find that the type of fossil fuel firm (coal or oil and gas), the type of divestment (partial, coal only, or full), the timing of the announcement, and the size of the divesting investor have some explanatory power in relation to the (cumulative) abnormal returns following the divestment announcements. While the negative impact on stock prices is not surprising, the reaction from the divested firms after such large divestitures is not consistent with what may be expected, given past reactions to divestitures seeking to achieve different social goals. Given the SDGs, it seems clear why investors are divesting themselves from fossil fuel firms, but why has the reaction to the 116 divestments led to very little change in the way these publicly traded fossil fuel firms do business given their direct and growing impacts on society? We conclude the study with some suggestions for future research. (shrink)

Horseshoe crabs (Limulus polyphemus) have been in decline in Long Island Sound, and recently there has been discussion of whether the state of Connecticut should stop issuing licenses for commercial harvesting. This paper argues that in spite of concerns about the living fossil concept, the fact that the horseshoe crabs are living fossils should count in favor of more stringent protection. The paper distinguishes four different views about the status of the living fossil concept: 1) eliminativism; 2) redefinition; 3) reframing; (...) and 4) conceptual pluralism. Approaches 2–4 all treat the criteria associated with living fossils as picking out distinctive features of evolutionary history. Those distinctive features of evolutionary history link up with conservation values in several ways. More generally, drawing upon relevant work in environmental philosophy, it is argued that evolutionary history is relevant to aesthetic and environmental value. Moreover, eliminativists have trouble rendering intelligible a striking pattern in the recent scientific literature. Researchers undertaking conservation-relevant work frequently highlight the living fossil status of the taxa under study. (shrink)

Gas will increasingly be seen as the fossil fuel of choice, especially when considering environmental impacts. Natural gas is the chance for Serbia for sustainable development and with its intensive consumption in the XXI century to conciliate the 4Es (Energy, Economy, Efficiency and Environment). In this paper we will compare the impact of different fossil fuels used for domestic heating with a special emphasis on natural gas. Some other causes of climate changes will be also discussed such as the Milanković (...) astronomical cycles. These factors will be compared with climate changes caused by the consumption of fossil fuels. (shrink)

Colleges and universities already contribute significantly to the fight against climate change, but the UN has recently called upon them to do even more. The purpose of this article is to demonstrate that institutions of higher education play a unique role in combatting climate change and other structural injustices, not only by conducting research and disseminating knowledge, but also by fostering a form of collective political responsibility. A philosophical analysis of different forms of collective responsibility, with specific attention to the (...) Fossil Free divestment movement, reveals how social position facilitates this contribution more so in colleges than in other institutions. (shrink)

Since the discovery of the Neandertal bones 1856, the extremely old, fragmentary fossil remains of hundreds of man-like bodies have been discovered in Europe, Asia, and Africa. Even the oldest ones - usually the most incomplete - look man-like and „un-apish", even to a layman, if compared with a modem apish and human correlate. Sometimes, in the vicinity of these remains, primitive stone tools or the evidence of their production have been found. At present, it seems absolutely certain — within (...) the limits of our present physical and biological knowledge - that at least four million years ago, in Africa, some creatures resembling modern man were living, and that at least two and half million years ago, in Africa, stone tools were produced. In contrast with the firm, scientifically-arguable belief that all modem human tribes - however different they are - belong to a single species, in paleoanthropology an equally firm scientific belief is maintained that the extinct man-like forms belong to several different, „presapient", „prehuman'', more ape-like species. (shrink)

Este artículo acota de manera discursiva la participación de quienes estuvieron implicados en el periodo de conflicto interno, que abarca el Gobierno del expresidente de la República Alberto Fujimori (1990-2000) y años previos a su mandato. Por esta modalidad del lenguaje, se asume toda peculiaridad que se exterioriza para conseguir su autodeterminación, con la finalidad de fundamentar sus filiaciones, sus ideologías, sus formas de interactuar y combatir. Los que integran personalmente esa confrontación bélica son los grupos subversivos y los responsables (...) de aminorar sus arremetidas con apoyo del Estado, designados contrasubversivos. La fuente que se considera para esta investigación es el Informe final de la Comisión de la Verdad y la Reconciliación que se publicó el 2003 en la capital del Perú. A través de la recopilación y la documentación, se logrará el propósito de este ensayo: la identificación y la configuración ambivalente de los agentes intervinientes en ese contexto de lucha armada. (shrink)

Fábio Alves dos Santos (1954-2013) cursou Pedagogia, Ciências Sociais e Teologia, era Especialista em Filosofia da Religião (PUC Minas), Advogado (PUC Minas) e Mestre em Direito Constitucional (UFMG). Lecionou na PUC Minas como professor de Cultura Religiosa e depois como professor no Curso de Direito, atuando principalmente no Serviço de Assistência Judiciária – SAJ, especialmente cuidado de causas populares como as da ASMARE (Associação dos Catadores de Papel, Papelão e Material Reaproveitável de Belo Horizonte), da Pastoral de Rua, da Pastoral (...) Carcerária, de movimentos de “Sem Casa”, de ocupações e tantos outros grupos. Fábio sofria de grave problema de visão há mais de 15 anos. Quase ficou cego depois de diversas cirurgias de miopia. Isso, porém, não o impedia de seguir seu constante compromisso com as lutas populares. Na última entrevista que concedeu, menos de um mês antes de sua morte (19 de outubro de 2013), depois de duro sofrimento de quase dois anos, no tratamento de um câncer no pâncreas, conta um pouco de sua vida, sua luta e sua percepção de várias realidades, especialmente da Igreja e da pastoral. Militante formado na Teologia da Libertação, de profunda espiritualidade, marcada por traços da religiosidade popular nordestina e comprometida com a libertação, Fábio Alves também buscou em sua vida abrir-se à teologia do pluralismo religioso, especialmente com o Santo Daime, em cuja tradição religiosa chegou a ser “fardado”, mantendo uma profunda atitude espiritual aberta ao diálogo inter-religioso. Sua primeira publicação foi “Começo de mundo novo: sofrimento, luta e vitória dos posseiros de Santana dos Frades”, Sergipe, numa versão popular em 1981 e outra pela Editora Vozes (1990). Fruto de sua dissertação de mestrado, publicou o livro “Direito Agrário: política fundiária no Brasil (1995). Em 2001 saiu seu último livro, uma coletânea de artigos publicados em diversos jornais: “Em defesa da vida”. Num artigo em Horizonte (2004), juntamente com o advogado, amigo e colega Prof. Cristiano de Melo Bastos, discutiu “A prática jurídica na missão da PUC Minas”. Palavras-chave : Teologia da Libertação. Militância. Igreja Católica. Pastoral. Lutas populares. (shrink)

The process commonly referred to as business-as-usual has given rise to dangerous climate change, but its social history remains strangely unexplored. A key moment in its onset was the transition to steam power as a source of rotary motion in commodity production, in Britain and, first of all, in its cotton industry. This article tries to approach the dynamics of the fossil economy by examining the causes of the transition from water to steam in the British cotton industry in the (...) second quarter of the nineteenth century. Common perceptions of the shift as driven by scarcity are refuted, and it is shown that the choice of steam was motivated by a rather different concern: power over labour. Turning away from standard interpretations of the role of energy in the industrial revolution, this article opens a dialogue with Marx on matters of carbon and outlines a theory of fossil capital, better suited for understanding the drivers of business-as-usual as it continues to this day. (shrink)

While the energy transition is needed more than ever, for some agents it brings significant losses. This article investigates whether fossil fuel owners could refer to promises to avoid having their assets stranded. It explains how authors, in the context of just transitions, have argued for the normative relevance of Rawlsian legitimate expectations, which refer to promissory entitlements. However, it argues that the normative relevance of promises towards fossil fuel owners is limited, because there are only few promises about what (...) will be permissible in the future and because these promises should be just before they can lead to entitlements. (shrink)

Fossils and tombs in museums fascinate us and haunt us with their secrets. The discovery of the remains of Homo naledi, found, as argued by some, in an ancient burial chamber, promises to reveal secrets of an unremembered past, thus offering clues concerning our present-day humans and maybe influence our human future. The paper will not engage directly with what Homo naledi might contribute to the various science-religion and/or theology conversations but rather engage with the grammars of these conversations, by (...) asking the question, why do tombs and fossils haunt us? This article will bring into the conversation Derrida's interpretation on tombs and fossils, his hauntology, as well as the fascination with secrets. It will not offer an interpretation of Naledi, but rather ask the question why she inspires the belief that she has something to offer the science-religion conversation, or why she inspires the belief that such discoveries make no difference to the religious views on creation, for example. Whichever way, the dead, and specifically those dead to human memory, when 'recalled', haunt us and disturb us with their secrets. (shrink)

Wynn's model for the evolution of spatial cognition is well supported by fossil evidence from brain endocasts, and from neurological studies of the cerebellum and the posterior parietal region of the cerebral cortex. Wynn's intriguing hypothesis that the spatial skill reflected in artifacts is an index of navigational ability, could be further explored by an analysis of lithic transport patterns.

The context of discovery and collection of Siwalik fossils had far less to do with science than with the ability to effect “translations” that helped bring together a wide range of social worlds, from the Doab Canal engineers working at the foot of the Hills, surgeon-botanists at the Saharanpur Botanic Gardens, other colonial officials, the native “Hindoo” diggers and collectors, to all of whom the Siwalik Hills was a “boundary object,” a common factor that bound their lives together. In this (...) colonial scientific collecting episode pertaining to the discovery of a new field of research, cooperation between different participants is achieved not by using methods of standardization but through an emphasis on greater heterogeneity, both in terms of the “allies” enrolled and fossils collected. Heterogeneity becomes a factor of strength rather than a weakness that deters the practice of science. This essay employs sociological reflection to examine the context of discovery, collection, and justification of a significant group of fossils in India in the 1830s–40s. (shrink)

The discovery of fossil melanosomes has resulted in a wealth of research over the last 7 years, notably the reconstruction of colour in dinosaurs and fossil mammals. In spite of these discoveries some authors persist in arguing that the observed microbodies could represent preserved bacteria. They contend that bacteria fossilise easily and everywhere, which means that one can never be certain that a microbody is a melanosome without an extraordinary burden of evidence. However, this critique mischaracterises the morphological and structural (...) evidence for interpreting microbodies as fossil melanosomes, and hence the basis for using them in reconstructing prehistoric colours. The claims for bacterial omnipresence in the fossil record are themselves not supported, thus tipping the scales strongly towards melanosomes in the bacteria‐versus‐melanosome controversy. (shrink)

The discovery of traces of a blood meal in the abdomen of a 50‐million‐year‐old mosquito reminds us of the insights that the chemistry of fossils can provide. Ancient DNA is the best known fossil molecule. It is less well known that new fossil targets and a growing database of ancient gene sequences are paralleled by discoveries on other classes of organic molecules. New analytical tools, such as the synchrotron, reveal traces of the original composition of arthropod cuticles that are more (...) than 400 my old. Pigments such as melanin are readily fossilized, surviving virtually unaltered for ∼200 my. Other biomarkers provide evidence of microbial processes in ancient sediments, and have been used to reveal the presence of demosponges, for example, more than 635 mya, long before their spicules appear in the fossil record. Ancient biomolecules are a powerful complement to fossil remains in revealing the history of life. (shrink)

Widespread preservation of fossilized biomolecules in many fossil animals has recently been reported in six studies, based on Raman microspectroscopy. Here, we show that the putative Raman signatures of organic compounds in these fossils are actually instrumental artefacts resulting from intense background luminescence. Raman spectroscopy is based on the detection of photons scattered inelastically by matter upon its interaction with a laser beam. For many natural materials, this interaction also generates a luminescence signal that is often orders of magnitude more (...) intense than the light produced by Raman scattering. Such luminescence, coupled with the transmission properties of the spectrometer, induced quasi‐periodic ripples in the measured spectra that have been incorrectly interpreted as Raman signatures of organic molecules. Although several analytical strategies have been developed to overcome this common issue, Raman microspectroscopy as used in the studies questioned here cannot be used to identify fossil biomolecules. (shrink)

La fotografía que acompaña este dossier procede del acervo documental del Archivo General de la Nación y corresponde al curso “Problemática del trabajo en la Filosofía Moderna”, que Guerrero impartió en el Colegio Libre de Estudios Superiores en 1936. Fue reproducida en la revista Foro y Notariado de la ciudad de Bahía Blanca, ilustrando una nota que informaba del fallecimiento de Guerrero el 7 de febrero de 1957.

This article is about a start-up problem in scientific practice. Specifically, it is about the problem of justifying paleontological correlation—the practice of using fossils to establish time relations among fossiliferous rocks. Paleontological correlation was the key to assembling a geological timescale during the nineteenth century and remains an important practice in stratigraphic geology to this day. Yet contrary to philosophical expectations, this practice lacked a robust theoretical justification during the first half of the nineteenth century. This article examines what this (...) lack of justification amounted to, as well as how the method of paleontological correlation was justified in practice. (shrink)

Hoy en día, el fuerte consagramiento y la expansión de la propiedad privada ha llevado al olvido a muchos métodos de gobernar recursos que no están basados en la exclusividad. Frecuentemente se escucha hablar de la propiedad como un derecho de dominio absoluto, algo inviolable que no conlleva obligaciones. Sin embargo, desde los inicios de la historia jurídica podemos observar que los derechos de propiedad han estado habitualmente acompañados de obligaciones y limitaciones, además de un mandato moral solicitando que el (...) manejo de la propiedad sea en vista al bien común. (shrink)

La grabación con teléfonos móviles de las masivas movilizaciones estudiantiles del año 2011 y del terremoto-tsunami del 27 de febrero de 2010 en Chile, y la divulgación de estos acontecimientos por Internet -especialmente a través de imágenes de YouTube-, permite la reflexión sobre la incorporación de las Tecnologías de la Información y las Comunicaciones (TICs) a los procesos de registro de memorias. En este caso se toma como referencia el imaginario “marino” de la navegación en el ciberespacio, con los (...) respectivos campos semánticos que ofrece la metáfora de una “sociedad líquida”. En este contexto se aborda la utilización del patrimonio digital -el acervo virtual y universal de imágenes- como fuente de memorias y de vestigios históricos: mensajes aislados, registrados por individuos y colectivos, que componen un archipiélago de culturas. (shrink)

Se presentan en este artículo los primeros resultados de una investigación que realizan los historiadores del Museo Histórico Regional “Emma Nozzi”, la que tiene por objeto analizar el Registro de Vecindad del partido de Carmen Patagones, levantado en 1887 conforme a la ley orgánica de las municipalidades bonaerenses de 1876. Mediante el trabajo con esta y otra documentación complementaria se comentan aspectos del proceso de captura y distribución de niños indígenas entre las familias de Carmen de Patagones, a partir (...) de las campañas de expansión nacional de las décadas de 1870 y 1880. (shrink)

Since the discovery of the Neandertal bones 1856, the extremely old, fragmentary fossil remains of hundreds of man-like bodies have been discovered in Europe, Asia, and Africa. Even the oldest ones - usually the most incomplete - look man-like and „un-apish", even to a layman, if compared with a modem apish and human correlate. Sometimes, in the vicinity of these remains, primitive stone tools or the evidence of their production have been found. At present, it seems absolutely certain — within (...) the limits of our present physical and biological knowledge - that at least four million years ago, in Africa, some creatures resembling modern man were living, and that at least two and half million years ago, in Africa, stone tools were produced. In contrast with the firm, scientifically-arguable belief that all modem human tribes - however different they are - belong to a single species, in paleoanthropology an equally firm scientific belief is maintained that the extinct man-like forms belong to several different, „presapient", „prehuman'', more ape-like species. (shrink)

Living fossils, taxa with similar members now and in the deep past, have recently come under scrutiny. Those who think the concept should be retained have argued for its epistemic and normative utility. This article extends the epistemic utility of the living fossils concept to include ways in which a taxon’s living fossil status can serve as evidence for other claims about that taxon. I will use insights from developmental biology to refine these claims. Insofar as these considerations demonstrate the (...) epistemic utility of the living fossils concept, they support retaining the concept and using it in biological research. (shrink)

Les opérations actuelles que mène Total en Afrique suivent un schéma ancien : l’exploitation, tournée vers les énergies fossiles, et la corruption des économies, des gouvernements, des sociétés et des environnements des pays en développement, le tout soutenu par la puissance étatique française. Emmanuel Macron rendit la chose tout à fait manifeste en 2021, lorsqu’il insista pour défendre le gaz possédé par Total au Mozambique (20 milliards de dollars) par une intervention militaire, menée par des soldats rwandais et sud-africains. Le (...) rôle sous-impérialiste de Pretoria explique son soutien désespéré aux nouveaux magnats du pétrole avec lesquels Total a fait alliance depuis la moitié des années 2010 pour exploiter d’importantes réserves de gaz et chercher de nouveaux gisements par dynamitage sismique. Mais depuis 2021, deux formes de résistance ont fait vaciller Total : les guérillas islamiques au Mozambique et les mobilisations écologistes et sociales déclenchées le long des côtes sud-africaines, tant du côté de l’océan Atlantique que de l’océan Indien. Mais il faudra dans les mois et les années à venir, organiser une campagne globale contre le renouveau de l’impérialisme – et du sous-impérialisme – fossile. (shrink)

This paper presents explication on how paleontologists reconstruct the past using fossils when _good_ modern analogues are not available. I call these _pastist_ methods to differentiate them from presentist methods in which such analogues are available. I do so by presenting two fossil cases: the problematica and graphoglyptids. I describe a forgotten heuristic, “analogue chaining,” that involves jumping from fossil anomaly to fossil anomaly using one to make sense of the other in successive fashion, using the relations _between fossils_ to (...) guide reconstruction. I relate this to the philosophy of historical sciences in four ways. First, that methods like analogue chaining have a “linearity” meaning that there are limited ways in which to learn about specimens using analogues. Second, that they are intrinsically difficult to notice, i.e. invisible. Third, that linearity and invisibility put pressure on some accounts of optimism about historical sciences. Fourth, our cases provide novel forms of optimism based on epistemic enhancement: the phenomena that some questions regarding an event are _better_ answered millions of years after its occurrence. (shrink)

This study investigated the perspective of Javanese Islamic philosophy on the Apak 'Beringin' rock fossil and its impact on the level of spirituality and community behavior, using a qualitative descriptive method with a phenomenological approach. Data analysis techniques were carried out using observation, interviews, and literature studies focusing on textual and contextual interpretations of the 'Beringin' Apak Fossil Rock. The main data sources came from the book of philosophy otak-athik gathuk (Javanese Islamic philosophical thought) by Damardjati Supadjar and the book (...) of commentary as-Sulami by Imam Abu Abd. Muhammad bin Husayn as-Sulami. The findings revealed that in Javanese Islamic philosophy, the symbolization of the universe depicted in the form of fossilized rocks aimed to train the soul in understanding the origin and purpose of everything in the universe or known as 'sangkan paraning damadi'. This is a manifestation of the Javanese Muslim community's way of knowing God or what is known as divine awareness ‘ilahiyah’. In the rock fossils that have been found, there are words Allah and Muhammad considered by the Javanese as a natural permit that is only obtained by people who reach certain maqam. The conclusion is that based on the elaboration of the meaning of the natural text which is symbolized in the form of the 'Beringin' Fossil rock, it is a reflection of oneself to always be close to Allah SWT. (shrink)

Fossil organisms offer our only direct insight into how the distinctive body plans of extant organisms were assembled. However, realizing the potential evolutionary significance of fossils can be hampered by controversy over their interpretation. Here, as a guide to evaluating palaeontological debates, we outline the process and pitfalls of fossil interpretation. The physical remains of controversial fossils should be reconstructed before interpreting homologies, and choice of interpretative model should be explicit and justified. Extinct taxa lack characters diagnostic of extant clades (...) because the characters had not yet evolved, because of secondary loss, or because they have rotted away. The latter, if not taken into account, will lead to the spurious assignment of fossils to basally branching clades. Conflicting interpretations of fossils can often be resolved by considering all the steps in the process of anatomical analysis and phylogenetic placement, although we must accept that some fossil organisms are simply too incompletely preserved for their evolutionary significance to be realized. (shrink)

Despite the iconic roles of coelacanths, cycads, tadpole shrimps, and tuataras as taxa that demonstrate a pattern of morphological stability over geological time, their status as living fossils is contested. We responded to these controversies with a recommendation to rethink the function of the living fossil concept. Concepts in science do useful work beyond categorizing particular items and we argued that the diverse and sometimes conflicting criteria associated with categorizing items as living fossils represent a complex problem space associated with (...) answering a range of questions related to prolonged evolutionary stasis. Turner defends the living concept against a variety of recent skeptics, but his criticism of our approach relies on a misreading of our main argument. This misreading is instructive because it brings into view the value of three central themes for rethinking the living fossil concept—the function of concepts in biology outside of categorization, the methodological importance of distinguishing parts and wholes in conceptualizing evolutionary phenomena, and articulating diverse explanatory goals associated with these phenomena. (shrink)

Exceptionally preserved fossils are the product of complex interplays of biological and geological processes including burial, autolysis and microbial decay, authigenic mineralization, diagenesis, metamorphism, and finally weathering and exhumation. Determining which tissues are preserved and how biases affect their preservation pathways is important for interpreting fossils in phylogenetic, ecological, and evolutionary frameworks. Although laboratory decay experiments reveal important aspects of fossilization, applying the results directly to the interpretation of exceptionally preserved fossils may overlook the impact of other key processes that (...) remove or preserve morphological information. Investigations of fossils preserving non-biomineralized tissues suggest that certain structures that are decay resistant are rarely preserved, and decay-prone structures can fossilize, albeit rarely. As we review here, decay resistance is an imperfect indicator of fossilization potential, and a suite of biological and geological processes account for the features preserved in exceptional fossils. Organisms decayed experimentally in seawater have been used as direct analogs for soft-bodied fossil taxa, with fossils representing a snapshot of a particular stage of decay. We argue that numerous geological and biological processes account for fossilization and that all of these should be considered when reconstructing extinct organisms. (shrink)

Exceptionally preserved fossils are the product of complex interplays of biological and geological processes including burial, autolysis and microbial decay, authigenic mineralization, diagenesis, metamorphism, and finally weathering and exhumation. Determining which tissues are preserved and how biases affect their preservation pathways is important for interpreting fossils in phylogenetic, ecological, and evolutionary frameworks. Although laboratory decay experiments reveal important aspects of fossilization, applying the results directly to the interpretation of exceptionally preserved fossils may overlook the impact of other key processes that (...) remove or preserve morphological information. Investigations of fossils preserving non-biomineralized tissues suggest that certain structures that are decay resistant are rarely preserved, and decay-prone structures can fossilize, albeit rarely. As we review here, decay resistance is an imperfect indicator of fossilization potential, and a suite of biological and geological processes account for the features preserved in exceptional fossils. Organisms decayed experimentally in seawater have been used as direct analogs for soft-bodied fossil taxa, with fossils representing a snapshot of a particular stage of decay. We argue that numerous geological and biological processes account for fossilization and that all of these should be considered when reconstructing extinct organisms. (shrink)

“Absence of evidence isn’t evidence of absence” is a slogan that is popular among scientists and nonscientists alike. This article assesses its truth by using a probabilistic tool, the Law of Likelihood. Qualitative questions (“Is E evidence about H ?”) and quantitative questions (“How much evidence does E provide about H ?”) are both considered. The article discusses the example of fossil intermediates. If finding a fossil that is phenotypically intermediate between two extant species provides evidence that those species have (...) a common ancestor, does failing to find such a fossil constitute evidence that there was no common ancestor? Or should the failure merely be chalked up to the imperfection of the fossil record? The transitivity of the evidence relation in simple causal chains provides a broader context, which leads to discussion of the fine-tuning argument, the anthropic principle, and observation selection effects. (shrink)

This paper will draw on Hegel’s writings in Jena from 1801 to 1804, especially the fragments for a philosophy of nature from 1803-04, to explore his sustained concern with the proper configuration of a system of nature. Hegel’s earliest treatment of nature sheds light on the role of nature in the system he published over a decade later. Moreover, the earliest system illuminates two problems posed by his later philosophy of nature-the relationship of nature and spirit, and the sequence and (...) organization of his treatment of illness and death. (shrink)

Com este artigo, queremos discutir a imagem fotográfica a partir dos conceitos de documento, registro e obra, como espelho do que encontramos no processo de criação, espaço de experiência e tradução do cotidiano. Tomamos a ideia de conjunto como ponto de partida para compreender a noção de obra. A obra de arte surge então de uma série de movimentos que, dentro de um contexto temporal e conceitual, se ligam a um produto que é apresentado ao público. Percebemos quase sempre (...) uma confusão por parte desse público que impede a compreensão desse produto final como parte do processo de criação, ficando a cargo dos documentos que registram o processo, a documentação do caminho percorrido pelo artista. (shrink)

Existe un tipo particular de usos de términos discriminatorios en el que las emociones negativas típicamente asociadas a él no se hallan de hecho presentes. Aun así, lo incorrecto o inadecuado sigue resonando en esos usos. Este tipo de ``uso distante'' resulta interesante per se, en cuanto fenómeno conversacional rara vez advertido. Sin embargo, también presta apoyo a una aproximación a los términos discriminatorios basada en el concepto sociolingüístico de ``registro'', de la cual se sigue esta relación entre emociones (...) e incorrección. Este trabajo examina algunos tipos de usos distantes y sus rasgos esenciales, y considera cómo el registro sociolingüístico de los términos discriminatorios puede dar cuenta de ellos. (shrink)