Results 1 to 10 of about 5,992 (256)

A new mamenchisaurid sauropod dinosaur from the upper jurassic of Southwest China reveals new evolutionary evidence from East Asian eusauropods [PDF]

open access: yesScientific Reports
East Asian non-neosauropodan eusauropods have been central to the study of the evolution of Middle to Late Jurassic sauropod dinosaurs. Despite their remarkable diversity, the fragmentary condition of many taxa and the insufficiency of phylogenetic data ...
Hui Dai   +6 more
doaj   +2 more sources

A new Early Jurassic dinosaur represents the earliest-diverging and oldest sauropodomorph of East Asia [PDF]

open access: yesScientific Reports
A new dinosaur assemblage from the Lower Jurassic at Wande Town, Wuding County, Yunnan Province, China is discovered recently. Here a new sauropodomorph from this site, Wudingloong wui gen. et sp.
Ya-Ming Wang   +8 more
doaj   +2 more sources

A new pterosaur tracksite from the Lower Cretaceous of Wuerho, Junggar Basin, China: inferring the first putative pterosaur trackmaker [PDF]

open access: yesPeerJ, 2021
We report the discovery of 114 small pterosaur footprints preserved in a greyish-green fine sandstone slab comprising 57 manus imprints and 57 pes imprints. Due to the chaotic distribution of footprints, the trackways are difficult to recognize.
Yang Li, Xiaolin Wang, Shunxing Jiang
doaj   +2 more sources

New anatomical information on Dsungaripterus weii Young, 1964 with focus on the palatal region [PDF]

open access: yesPeerJ, 2020
Pterosaur specimens with complete and well-preserved palatal region are rare. Here we describe new and previously collected specimens of the pterodactyloid pterosaur Dsungaripterus weii that are three-dimensionally preserved and provide new anatomical ...
He Chen   +7 more
doaj   +2 more sources

A new istiodactylid pterosaur, Lingyuanopterus camposi gen. et sp. nov., from the Jiufotang Formation of western Liaoning, China [PDF]

open access: yesPeerJ, 2022
The Istiodactylidae is a group of pterodactyloids characterised by large nasoantorbital fenestrae and labiolingually compressed teeth, with several records reported from the Early Cretaceous of northeastern China and western Europe.
Yizhi Xu, Shunxing Jiang, Xiaolin Wang
doaj   +2 more sources

Nuclear preservation in the cartilage of the Jehol dinosaur Caudipteryx

open access: yesCommunications Biology, 2021
Zheng et al. report on the presence of nuclear preservation in the femoral cartilage of a specimen of Caudipteryx, a theropod dinosaur. They identify the presence of chromatin threads for only the second time in any vertebrate fossil.
Xiaoting Zheng   +4 more
doaj   +1 more source

Cretaceous bird with dinosaur skull sheds light on avian cranial evolution

open access: yesNature Communications, 2021
In addition to major innovations in their locomotor system, early birds evolved highly derived skulls. Here, Wang et al. three dimensionally reconstruct the skull of a new enantiornithine bird from the Early Cretaceous that illustrates the early avialan ...
Min Wang   +4 more
doaj   +1 more source

The rapid evolution of lungfish durophagy

open access: yesNature Communications, 2022
It is unclear how Lungfishes evolved durophagy, the consumption of hard prey, despite being the longest lineage of vertebrates with this feeding mechanism. Here, the authors describe exceptionally preserved fossils of Youngolepis from the Early Devonian,
Xindong Cui   +4 more
doaj   +1 more source

The first record of exceptionally-preserved spiral coprolites from the Tsagan-Tsab formation (lower cretaceous), Tatal, western Mongolia

open access: yesScientific Reports, 2021
In this paper, seven coprolites from the Lower Cretaceous of Tsagan-Tsab formation have been described. Thus, producing a significant contribution to what we perceived as the first detailed study of coprolites from the Mesozoic deposits in Mongolia.
Paul Rummy, Kazim Halaclar, He Chen
doaj   +1 more source

New information on the Wukongopteridae (Pterosauria) revealed by a new specimen from the Jurassic of China [PDF]

open access: yesPeerJ, 2016
The Wukongopteridae is an important pterosaur group discovered from Yanliao Biota, because it combines character states seen in non-pterodactyloid and pterodactyloid pterosaurs.
Xin Cheng   +3 more
doaj   +2 more sources

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