Results 31 to 40 of about 5,992 (256)
BMC Evolutionary Biology, 2018 Background Tamquammys has been considered one of the basal ctenodactyloid rodents, which has been documented in the earliest to middle Eocene (~ 56.0–48.5 Ma) in China. It was the most abundant and widespread rodent genus in the Erlian Basin (Nei Mongol,
Łucja Fostowicz-Frelik +2 more
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
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
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
doaj +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
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
Late Paleocene to early Oligocene fire ecology of the south Mongolian highland
Frontiers in Earth Science, 2023 Changes in fire ecology during warm and cold periods in the geological past are important because of their effects on terrestrial ecosystems and the global carbon cycle.
Xinying Zhou +10 more
doaj +1 more source