Results 31 to 40 of about 33,062 (329)

Paleobiological Perspectives on the Early Upper Paleolithic Human Transition in the Northwestern Old World

Bulletins et Mémoires de la Société d’Anthropologie de Paris, 2001
The emerging consensus that the emergence of modern humans in the northwestern Old World involved temporally and geographically varying degrees of admixture between Neandertals and early modern humans within the early Upper Paleolithic provides the ...
Erik Trinkaus
doaj   +1 more source

A soluble model of evolution and extinction dynamics in a rugged fitness landscape [PDF]

, 1997
We consider a continuum version of a previously introduced and numerically studied model of macroevolution (PRL 75, 2055, (1995)) in which agents evolve by an optimization process in a rugged fitness landscape and die due to their competitive ...
David M. Raup, David M. Raup, David M. Raup, David M. Raup, David M. Raup, J. J. Sepkoski, Kim Sneppen, M. E. J. Newman, Norman T. J. Bailey, P. Bak, Paolo Sibani, Paolo Sibani, Paolo Sibani, Richard E. Lenski, S. A. Kauffman, S. Wright, Stephen Jay Gould, Steven M. Stanley, Stuart Kauffman, Tomasz K. Baumiller   +19 more
core   +2 more sources

Raman spectroscopy is a powerful tool in molecular paleobiology: An analytical response to Alleon et al. (https://doi.org/10.1002/bies.202000295)

Bioessays, 2022
A recent article argued that signals from conventional Raman spectroscopy of organic materials are overwhelmed by edge filter and fluorescence artefacts.
J. Wiemann, D. Briggs
semanticscholar   +1 more source

Molecular Paleobiology of the Echinoderm Skeleton

, 2022
Molecular paleobiology provides a promising avenue to merge data from deep time, molecular biology and genomics, gaining insights into the evolutionary process at multiple levels. The echinoderm skeleton is a model for molecular paleobioloogical studies.
J. Thompson
semanticscholar   +1 more source

Bone microstructure of the sphenodont rhynchocephalian Priosphenodon avelasi and its paleobiological implications [PDF]

Acta Palaeontologica Polonica
Sphenodontians are a group of vertebrates with a vast taxonomic diversity and worldwide distribution of their fossils. Although they have been the subject of many studies on their phylogeny and morphology, those focused on their paleobiology are still ...
SOL A. CAVASIN, IGNACIO A. CERDA, SEBASTIÁN APESTEGUÍA   +2 more
doaj   +1 more source

Climate Change and invasibility of the Antarctic benthos [PDF]

, 2007
Benthic communities living in shallow-shelf habitats in Antarctica (<100-m depth) are archaic in their structure and function. Modern predators, including fast-moving, durophagous (skeleton-crushing) bony fish, sharks, and crabs, are rare or absent ...
A Brandt, A Brandt, A Brandt, A Brandt, A Clarke, A Clarke, A Clarke, A Clarke, A Clarke, AL Allcock, Andrew Clarke, BA Seibel, Brad A. Seibel, Cheryl D. Wilga, D Thies, DA Hodgson, Daniel B. Blake, DS Coombs, EW Dawson, G Chapelle, GA Knox, GA Lovrich, GE Hofmann, GJ Vermeij, JC Carrier, JE Werner, JH Lipps, JM Raguá-Gil, JP Kennett, JS Pearse, JT Eastman, JT Eastman, JW Wakeling, L Watling, LC Ivany, LI Comoglio, Lloyd S. Peck, LS Peck, M Klages, MA Bitner, P Huybrechts, PA Fields, PD Glorioso, PM Arnaud, Pörtner H-O, R Revelle, RB Aronson, Richard B. Aronson, RJ Menzies, RM Feldmann, S Thatje, S Thatje, SM Stanley, Snelgrove PVR, ST Ahyong, Sven Thatje, T Antezana, T Brey, TJ Page, U Piatkowski, WE Arntz, WE Arntz, WE Arntz   +62 more
core   +1 more source

LATE PLEISTOCENE LAST OCCURRENCES OF THE NARROW-NOSED RHINOCEROS STEPHANORHINUS HEMITOECHUS (MAMMALIA, PERISSODACTYLA) IN ITALY

Rivista Italiana di Paleontologia e Stratigrafia, 2017
Several taxa belonging to the so called megafauna became extinct during the late Quaternary in Eurasia. The extinction chronology of the narrow-nosed rhinoceros, Stephanorhinus hemitoechus, in Europe is still uncertain and only estimated around 45 ka.
LUCA PANDOLFI, PAOLO BOSCATO, JACOPO CREZZINI, MAURIZIO GATTA, ADRIANA MORONI, MARIO ROLFO, ANTONIO TAGLIACOZZO   +6 more
doaj   +1 more source

Sedimentología y vertebrados fósiles de la Formación Santa Cruz (Mioceno temprano) en Lago Posadas, suroeste de Patagonia, Argentina [PDF]

, 2019
Lago Posadas se ubica al pie de los Andes Patagónicos Australes, en el suroeste de Argentina, donde la Formación Santa Cruz (FSC) del Mioceno temprano muestra afloramientos potentes y lateralmente continuos.
Aramendía, Inés, Bargo, María Susana, Cuitiño, José Ignacio, Vizcaíno, Sergio Fabián   +3 more
core   +2 more sources

Paleobiology: A Tooth for a Tooth [PDF]

Current Biology, 2017
Many vertebrates replace teeth through shedding of the functional tooth. New analyses of a fossil fish demonstrate that shedding involved tooth resorption, a primitive feature in bony fishes, but absent in sharks and their relatives.
openaire   +2 more sources

The phylogenetic affinities and morphological peculiarities of the bird-like dinosaur Borogovia gracilicrus from the Upper Cretaceous of Mongolia [PDF]

PeerJ, 2021
Borogovia gracilicrus is a small-bodied theropod dinosaur from the Maastrichtian (Upper Cretaceous) Nemegt Formation of southern Mongolia. The taxon is based on a single fragmentary specimen preserving only the distal part of the hindlimbs.
Andrea Cau, Daniel Madzia
doaj   +2 more sources