Results 41 to 50 of about 30,236 (185)

Hierarchy Theory of Evolution and the Extended Evolutionary Synthesis: Some Epistemic Bridges, Some Conceptual Rifts [PDF]

, 2018
Contemporary evolutionary biology comprises a plural landscape of multiple co-existent conceptual frameworks and strenuous voices that disagree on the nature and scope of evolutionary theory.
A Etxeberria, A Fuentes, A Parravicini, A Vianello, A Wagner, AC Love, Alejandro Fábregas-Tejeda, AV Badyaev, B Bocxlaer Van, BS Lieberman, BS Lieberman, D Noble, D Sepkoski, D Sloan-Wilson, DD Turner, DJ Depew, DJ Futuyma, DJ Nicholson, DL Hull, DM Walsh, DR Piperno, DT Campbell, E Danchin, E Jablonka, E Jablonka, E Jablonka, E Mayr, E Mayr, E Serrelli, E Szathmáry, EI Svensson, ES Vrba, ES Vrba, ES Vrba, F Suman, F Vergara-Silva, FJ Odling-Smee, FJ Odling-Smee, Francisco Vergara-Silva, GB Müller, GB Müller, GG Simpson, GJ Cooper, GP Wagner, GP Wagner, I Tëmkin, I Tëmkin, I Tëmkin, J Beatty, J Griesemer, J Griesemer, J Odling-Smee, J Odling-Smee, JJ Welch, JW Pepper, K Laland, K Laland, K Stotz, KN Laland, KN Laland, KN Laland, KN Laland, M Bertolaso, M Blute, M Lynch, M Martínez, M Nei, M Pavličev, M Pigliucci, M Pigliucci, MD Laubichler, MJ Denton, MW Kirschner, N Eldredge, N Eldredge, N Eldredge, N Eldredge, N Eldredge, N Eldredge, N Eldredge, N Eldredge, P Alberch, P Bateson, P Godfrey-Smith, PJ Bowler, R Amundson, R Amundson, R Riedl, R Sansom, RG Delisle, RG Winther, S Caianiello, S Okasha, S Okasha, S Oyama, S Sultan, SF Gilbert, SJ Gould, SJ Gould, T Ingold, T Ingold, T Pievani, T Pievani, T Pievani, T Pievani, TA Grantham, TS Kemp, TS Kemp, U Dieckmann, W Miller III, W Miller III, WB Provine, WD Allmon, WE Reif   +113 more
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The position of graptolites within Lower Palaeozoic planktic ecosystems. [PDF]

, 1993
An integrated approach has been used to assess the palaeoecology of graptolites both as a discrete group and also as a part of the biota present within Ordovician and Silurian planktic realms.
Allison P.A., Baker A. de C., Bates D.E.B., Beckly A.J., Bergstrom J., Berry W.B.N., Berry W.B.N., Berry W.B.N., Bjerreskov M., Brenchley, Briggs D.E.G., Bulman O.M.B., Bulman O.M.B., Bulman O.M.D., Cloud P., Colbath G.K., Conway Morris S., Conway Morris S., Conway Morris S., Conway Morris S., Conway Morris S., Cooper R.A., Crowther P.R., Crowther P.R., Elles G.L., Erdtmann B.D., Erdtmann B.D., Erdtmann B.D., Finney S.C., Fortey R.A., Fortey R.A., Fortey R.A., Fortey R.A., Gurich G., Herr S.H., Jackson D.E., Jager H., Jager H., Kemp A.E.S., Kirk N. H., Kirk N.H., Kirk N.H., Kirk N.H., Koren T.N., Kozlowski R., Kozlowski R., Koztowski R., Koztowski R., Koztowski R., Leggett J.K., Lenz A.C., Loydell D.K., Mauchline J., Nicholson H.A., Palmer D., Rickards R.B., Rickards R.B., Rickards R.B., Rickards R.B., Rickards R.B., Rickards R.B., Rigby S., Rigby S., Rigby S., Rosen B.R., Ruedemann R., Semina H.J., Sheehan P.M., Siveter D.J., Stormer L., Towe K.M., Tsudy D.M., Urbanek A., Urbanek A., Urbanek A., Walters M., Wells M.J., Whittington H.B., Williams S.H., Williams S.H., Williams S.H., Williams S.H., Williams S.H., Winston J.E., Zalasiewicz J.A., Ziegler A.M.   +85 more
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The Evolution of Equid Monodactyly: A Review Including a New Hypothesis

Frontiers in Ecology and Evolution, 2019
The traditional story of horse evolution is well-known: over time, horses became larger, they attained higher-crowned teeth, and they changed from having three toes (tridactyly) to a single toe (monodactyly). Evolution is often perceived as a progression
Christine M. Janis, Christine M. Janis, Raymond L. Bernor   +2 more
doaj   +1 more source

Possible Origin of Stagnation and Variability of Earth's Biodiversity

, 2014
The magnitude and variability of Earth's biodiversity have puzzled scientists ever since paleontologic fossil databases became available. We identify and study a model of interdependent species where both endogenous and exogenous impacts determine the ...
Geisel, Theo, Nagler, Jan, Stollmeier, Frank   +2 more
core   +1 more source

The fossil record of early tetrapods: worker effort and the end-Permian mass extinction [PDF]

, 2010
It is important to understand the quality of the fossil record of early tetrapods (Tetrapoda, minus Lissamphibia and Amniota) because of their key role in the transition of vertebrates from water to land, their dominance of terrestrial faunas for over ...
Bebber D.F., Benton M.J., Benton M.J., Benton M.J., Emma L. Bernard, Fara E., Fara E., Flessa K.W., Jaeger G.F., James E. Tarver, Marcello Ruta, Maxwell W.D., Michael J. Benton, Peters S.E., Raup D.M., Schoch R.R., Sepkoski J.J., Valentine J.W., Wickström L.M.   +18 more
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Introduction: New Discoveries and Theoretical Implications for the Last Foraging and First Farming in East Asia

Quaternary, 2021
Worldwide, scientific understanding about domestication and the origins of food production is undergoing rapid change based on new data from discoveries in paleoclimates and environments, paleobiology, and archaeology [...]
Pei-Lin Yu, Kazunobu Ikeya, Meng Zhang
doaj   +1 more source

Paleobiology in the Mediterranean

Bollettino della Società Paleontologica Italiana, 2020
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Dominici S., Scarponi D.
openaire   +2 more sources

Power, competition, and the nature of history [PDF]

, 2019
Historians have debated whether pathways and events from the past to the present are influenced largely by contingency, the dependence of outcomes on particular prior conditions, or whether there is long-term emergent directional change.
Vermeij, Geerat J
core   +1 more source

Speleothem and biofilm formation in a granite/dolerite cave, Northern Sweden

International Journal of Speleology, 2014
Tjuv-Antes grotta (Tjuv-Ante's Cave) located in northern Sweden is a round-abraded sea cave ('tunnel cave'), about 30 m in length, formed by rock-water abrasion in a dolerite dyke in granite gneiss. Abundant speleothems are restricted to the inner, mafic
Therese Sallstedt, Magnus Ivarsson, Johannes Lundberg, Rabbe Sjöberg, Juan Ramón Vidal Romaní   +4 more
doaj   +1 more source

Stable isotopes and predation marks shed new light on ammonoid habitat depth preferences

Scientific Reports, 2021
Ammonoids are extinct cephalopods with external shells which predominated in many late Paleozoic and Mesozoic marine ecosystems. Stable isotope data from ammonoid shells constitute primary tools for understanding their palaeohabitats.
Marcin Machalski, Krzysztof Owocki, Zofia Dubicka, Oksana Malchyk, Weronika Wierny   +4 more
doaj   +1 more source