Results 31 to 40 of about 6,543 (238)
Bony-fish-like scales in a Silurian maxillate placoderm
Nature Communications, 2023 Major groups of jawed vertebrates exhibit contrasting conditions of dermal plates and scales. But the transition between these conditions remains unclear due to rare information on taxa occupying key phylogenetic positions.
Xindong Cui +4 more
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Morphology of an Early Oligocene beaver Propalaeocastor irtyshensis and the status of the genus Propalaeocastor [PDF]
PeerJ, 2017 The Early to Late Oligocene Propalaeocastor is the earliest known beaver genus from Eurasia. Although many species of this genus have been described, these species are defined based on very fragmentary specimens.
Lüzhou Li +3 more
doaj +2 more sources
Race and the odd history of human paleontology [PDF]
The Anatomical Record Part B: The New Anatomist, 2006 AbstractAlthough the late 17th century witnessed the recognition of fossils as the remains of extinct organisms—because they could be incorporated into the creation story embodied in the Great Chain of Being—acceptance of human antiquity through the indisputable demonstration of the contemporaneity of human bones, stone tools, and accepted fossils was ...
openaire +2 more sources
Scientific Reports, 2023 Sauropterygia is the largest, most successful group of Mesozoic marine diapsids, spanning from the late Early Triassic to the Late Cretaceous. Plesiomorphic for sauropterygians, pachypleurosauroids are important for our understanding on the early ...
Guang-Hui Xu +7 more
doaj +1 more source
INEVITABLE HUMANS: SIMON CONWAY MORRIS'S EVOLUTIONARY PALEONTOLOGY [PDF]
Zygon: Journal of Religion and Science, 2005 Abstract. Simon Conway Morris, noted Cambridge University paleontologist, argues that in evolutionary natural history humans (or beings rather like humans) are an inevitable outcome of the developing speciating processes over millennia; humans are “inherent” in the system.
Rolston, Holmes, 1932-, author +1 more
openaire +2 more sources
The first dinosaurs from the Early Cretaceous Hami Pterosaur Fauna, China
Scientific Reports, 2021 The Early Cretaceous Hami Pterosaur Fauna in Northwest China preserves a large number of specimens of the sexually dimorphic pteranodontoid pterosaur Hamipterus tianshanensis, including 3D eggs and embryos.
Xiaolin Wang +6 more
doaj +1 more source
A new genus of sinogaleaspids (Galeaspida, stem-Gnathostomata) from the Silurian Period in Jiangxi, China [PDF]
PeerJ, 2020 Galeaspids are an endemic clade of jawless stem-gnathostomes known as ostracoderms. Their existence illuminates how specific characteristics developed in jawed vertebrates.
Xianren Shan +5 more
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The Anatomical Record, EarlyView.Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley +1 more source
Hippotherium Datum implies Miocene palaeoecological pattern
Scientific Reports, 2022 Here, we report well–preserved skulls and postcranial specimens of genus Hippotherium from the Linxia Basin, Gansu, China. Based on morphological comparison, the species of Hippotherium in China, Hippotherium weihoense and Hippotherium chiai, should be ...
Boyang Sun +3 more
doaj +1 more source
The Anatomical Record, EarlyView.Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen +7 more
wiley +1 more source