Results 41 to 50 of about 7,955,044 (242)
An Oligocene giant rhino provides insights into Paraceratherium evolution
Communications Biology, 2021 Deng et al. report a new species of giant rhino, Paraceratherium linxiaense, from specimens of the upper Oligocene Jiaozigou Formation in China with an age of 26.5 Ma. Morphological analysis of the completely preserved skull with articulated mandible and
Tao Deng +6 more
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Scientific Reports, 2023 The Chaoyangopteridae is a clade of azhdarchoid pterosaurs that stands out in China, particularly in the Jehol Biota, as a Cretaceous group of medium-sized and high-crested pterosaurs. Herein, we describe a new species, Meilifeilong youhao gen.
Xiaolin Wang +13 more
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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
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Race and the odd history of human paleontology [PDF]
The Anatomical Record Part B: The New Anatomist, 2006 Abstract Although 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,
openaire +2 more sources
A near-complete caudipterid pes from the Early Cretaceous Jehol Biota reveals insights into pedal anatomy and osteohistology of early oviraptorosaurs [PDF]
Swiss Journal of PalaeontologyThe evolution of the pedal morphology and the ontogeny of early oviraptorosaur theropods remain inadequately understood, largely owing to the poor preservation of available material and the limitations of traditional observation methods.
Mengxi Han +10 more
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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
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, 1995 This guide is designed to be used by teachers as an aid for teaching principles of fossils and past life to elementary school students. The activities and labs provided include topics such as fossilization, sedimentation, trace fossils, the importance of
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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
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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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