Results 31 to 40 of about 31,568 (232)

Decoupling of morphological disparity and taxic diversity during the adaptive radiation of anomodont therapsids [PDF]

, 2013
Adaptive radiations are central to macroevolutionary theory. Whether triggered by acquisition of new traits or ecological opportunities arising from mass extinctions, it is debated whether adaptive radiations are marked by initial expansion of taxic ...
Anderson MJ, Benton MJ, Cox CB, Crompton AW, Fröbisch J, McKinney ML, Smith RMH, Upchurch P   +7 more
core   +1 more source

Tubular microfossils from ∼2.8 to 2.7Ga-old lacustrine deposits of South Africa: A sign for early origin of eukaryotes? [PDF]

, 2016
Unequivocal evidence for Archean eukaryotic life has been long sought for and is a matter of lively debate. In the absence of unambiguous fossils this debate has focused on biogeochemical signatures and molecular phylogenies.
Altermann, Wladyslaw, Franchi, Ian, Kaźmierczak, Józef, Kremer, Barbara   +3 more
core   +2 more sources

Declining Volatility, a General Property of Disparate Systems: From Fossils, to Stocks, to the Stars

, 2013
There may be structural principles pertaining to the general behavior of systems that lead to similarities in a variety of different contexts. Classic examples include the descriptive power of fractals, the importance of surface area to volume ...
ADRAIN, ANG, BAKER, BAMBACH, BENTON, BONNER, BRIGGS, BROMHAM, BROOKS, CERVANTES-COTA, CORNETTE, CUCCIATI, ELDREDGE, ELDREDGE, ELDREDGE, FELLER, FOOTE, GALILEO, GEHRELS, GILINSKY, GILINSKY, GOODMAN, GOULD, GOULD, GOULD, GOULD, GOULD, GOULD, GOULD, GOULD, JABLONSKI, JABLONSKI, JABLONSKI, JOHNSON, JUST, KARACESKI, KAUFMAN, KIRCHNER, KRUG, KURTÉN, LIEBERMAN, LIEBERMAN, LIEBERMAN, LIEBERMAN, LIEBERMAN, LILY, LINEWEAVER, LLOYD, LO, MacARTHUR, MADAU, MANDELBROT, McGOWAN, McSHEA, MELOTT, MELOTT, MELOTT, MILLER, MOSKOWITZ, NIKLAS, PATTERSON, PETERS, PETTINI, PLOTNICK, RAUP, RAUP, RAUP, SEPKOSKI, STANLEY, STANLEY, VRBA, VRBA, WILKINSON   +72 more
core   +1 more source

Evidence of strong stabilizing effects on the evolution of boreoeutherian (Mammalia) dental proportions. [PDF]

, 2019
The dentition is an extremely important organ in mammals with variation in timing and sequence of eruption, crown morphology, and tooth size enabling a range of behavioral, dietary, and functional adaptations across the class.
Archibald J. D., Archibald J. D., Bergqvist L. P., Butler P. M., Chaffee R. G., Clark J., Clemens W. A., Cuvier G., Evans A. R., Fortelius M., Gingerich P. D., Harmon L., Janis C. M., Janis C. M., Kay R. F., Kurtén B., Lucas P. W., Lucas P. W., Monson T. A., Nowak R. N., Orme D., Qiu Z. X., R Core Team, Revelle W., Tomiya S., Ungar P. S., Ungar P. S.   +26 more
core   +5 more sources

Faunal Assemblages From Lower Bed I (Oldupai Gorge, Tanzania)

Frontiers in Ecology and Evolution, 2022
Palaeobiological and archeological excavations at the site of Ewass Oldupa, found in the western Plio-Pleistocene rift basin of Oldupai Gorge (also Olduvai Gorge), Tanzania, revealed rich fossiliferous levels and the earliest remains of human activity at
Pamela Akuku, Pamela Akuku, Palmira Saladié, Palmira Saladié, Palmira Saladié, Abdallah Mohamed, Aloyce Mwambwiga, Aloyce Mwambwiga, Pastory Bushozi, Julio Mercader, Julio Mercader, Julio Mercader, Julio Mercader   +12 more
doaj   +1 more source

An unusual early-diverging plesiosauroid from the Lower Jurassic Posidonia Shale of Holzmaden, Germany. [PDF]

PeerJ
The lower Toarcian Posidonia Shale at Holzmaden, Southwest Germany, has yielded some of the most remarkable Lower Jurassic marine tetrapod specimens, including five plesiosaur taxa identified from nearly complete skeletons.
Sachs S, Madzia D.
europepmc   +3 more sources

Biological implications of high-energy cosmic ray induced muon flux in the extragalactic shock model

, 2011
A ~ 62 My periodicity in fossil biodiversity has been observed in independent studies of paleontology databases over ~0.5Gy. The period and phase of this biodiversity cycle coincides with the oscillation of our solar system normal to the galactic disk ...
Adrian L. Melott, Alpen, Arens, Atri, Atri, Bailer-Jones, Chen, Cornette, Cucinotta, Dimitra Atri, Ferrari, Feulner, Gies, Groom, Hebbeker, Karam, Kirkby, Lieberman, McNulty, Medvedev, Melott, Melott, Melott, Melott, Melott, O'Brien, Pelliccioni, Rohde, Simonsen, Usoskin   +29 more
core   +1 more source

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
core   +1 more source

Estimating the evolutionary rates in mosasauroids and plesiosaurs: discussion of niche occupation in Late Cretaceous seas [PDF]

PeerJ, 2020
Observations of temporal overlap of niche occupation among Late Cretaceous marine amniotes suggest that the rise and diversification of mosasauroid squamates might have been influenced by competition with or disappearance of some plesiosaur taxa.
Daniel Madzia, Andrea Cau
doaj   +2 more sources

Molluscs from a shallow-water whale-fall and their affinities with adjacent benthic communities on the Swedish west coast [PDF]

, 2013
We conducted a species-level study of molluscs associated with a 5-m long carcass of a minke whale at a depth of 125 m in the Kosterfjord (North Sea, Sweden).
Dahlgren, TG, Danise, S, Dominici, S, Glover, AG   +3 more
core   +3 more sources