Results 21 to 30 of about 4,757 (254)
Body mass estimation in Triassic cynodonts from Argentina based on limb variables
Acta Palaeontologica Polonica, 2022 Body mass estimations for extinct taxa are fundamental in palaeobiological reconstructions, but little work has been done on this topic for non-mammaliaform cynodonts (NMC), the diverse and abundant Permo-Cretaceous forerunners of mammals.
FLORENCIA S. FILIPPINI +2 more
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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
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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
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The paleobiological record of photosynthesis [PDF]
Photosynthesis Research, 2010 Fossil evidence of photosynthesis, documented in Precambrian sediments by microbially laminated stromatolites, cyanobacterial microscopic fossils, and carbon isotopic data consistent with the presence of Rubisco-mediated CO2-fixation, extends from the present to ~3,500 million years ago. Such data, however, do not resolve time of origin of O2-producing
openaire +4 more sources
Bone microstructure of the sphenodont rhynchocephalian Priosphenodon avelasi and its paleobiological implications [PDF]
Acta Palaeontologica PolonicaSphenodontians 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 +2 more
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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 +6 more
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Turning setbacks into stepping-stones for growth in conservation paleobiology
Frontiers in Ecology and EvolutionConservation paleobiology is a cross-disciplinary field that utilizes the geohistorical record of past life on Earth to inform present-day decisions in conservation and restoration and assist in planning for future natural resource management.
G. Lynn Wingard +4 more
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American Journal of Botany, EarlyView.Abstract Premise The Chicxulub asteroid impact at the Cretaceous–Paleogene (K–Pg) boundary triggered a mass extinction 66 million years ago. Ferns thrived in the aftermath of the extinction, evidenced by the well‐documented “fern spore spike.” However, fern macrofossil records across the K–Pg boundary are less understood.
Fern B. Holian +9 more
wiley +1 more source
The Anatomical Record, EarlyView.A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman +4 more
wiley +1 more source