Osteohistology of the Maastrichtian, small-bodied elasmosaurid Kawanectes lafquenianum (Sauropterygia; Plesiosauria). [PDF]
J AnatThe present contribution brings new osteohistological information on the postcranial bones of Kawanectes lafquenianum and shed some light on Plesiosauria microanatomy and microstructure. The bone architecture shows variability between forelimbs and hindlimbs.
Pereyra ME, O'Gorman J, Chinsamy A.
europepmc +4 more sources
Synchrotron Microtomography of a Nothosaurus Marchicus Skull Informs on Nothosaurian Physiology and Neurosensory Adaptations in Early Sauropterygia [PDF]
PLoS ONE, 2018 Nothosaurs form a subclade of the secondarily marine Sauropterygia that was well represented in late Early to early Late Triassic marine ecosystems. Here we present and discuss the internal skull anatomy of the small piscivorous nothosaur Nothosaurus ...
Ricardo Araújo +2 more
exaly +3 more sources
An armoured marine reptile from the Early Triassic of South China and its phylogenetic and evolutionary implications [PDF]
eLife, 2023 Sauropterygia was a taxonomically and ecomorphologically diverse clade of Mesozoic marine reptiles spanning the Early Triassic to the Late Cretaceous.
Andrzej S Wolniewicz +7 more
doaj +2 more sources
Ancestral body plan and adaptive radiation of sauropterygian marine reptiles [PDF]
iScience, 2022 Summary: Sauropterygia is the most diversified and dominant clade among marine reptiles, but their early evolution is scarcely understood. Here we report the earliest known complete specimen related to sauropterygians from the Early Triassic.
Wei Wang +4 more
doaj +2 more sources
The oldest record of Saurosphargiformes (Diapsida) from South China could fill an ecological gap in the Early Triassic biotic recovery [PDF]
PeerJ, 2022 Diversification following the end-Permian mass extinction marks the initiation of Mesozoic reptile dominance and of modern marine ecosystems, yet major clades are best known from the Middle Triassic suggesting delayed recovery, while Early Triassic ...
Long Cheng +6 more
doaj +3 more sources
A new long-snouted marine reptile from the Middle Triassic of China illuminates pachypleurosauroid evolution [PDF]
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 +2 more sources
Osteology and phylogeny of Panzhousaurus rotundirostris from the Middle Triassic (Anisian) of Guizhou Province, China, and implications for the origin of Keichousauridae (Pachypleurosauroidea, Eosauropterygia) [PDF]
PeerJSauropterygia (including Placodontia and Eosauropterygia) is the most species-rich group of marine reptiles in the Mesozoic. Panzhousaurus rotundirostris is a rare eosauropterygian from the early Middle Triassic (Anisian) marine deposits of Panzhou ...
Feng-Ting Tan +2 more
doaj +3 more sources
A large osteoderm-bearing rib from the Upper Triassic Kössen Formation (Norian/Rhaetian) of eastern Switzerland [PDF]
Swiss Journal of Palaeontology, 2022 An important component of the Alpine vertebrate record of Late Triassic age derives from the Kössen Formation, which crops out extensively in the eastern Alps.
Torsten M. Scheyer +3 more
doaj +2 more sources
Rapid neck elongation in Sauropterygia (Reptilia: Diapsida) revealed by a new basal pachypleurosaur from the Lower Triassic of China [PDF]
BMC Ecology and Evolution, 2023 Neck elongation has appeared independently in several tetrapod groups, including giraffes and sauropod dinosaurs on land, birds and pterosaurs in the air, and sauropterygians (plesiosaurs and relatives) in the oceans.
Qi-Ling Liu +6 more
doaj +2 more sources
New digital anatomical data of Keichousaurus hui (Reptilia: Sauropterygia) and its phylogenetic implication [PDF]
PeerJThree complete skulls of Keichousaurus hui from the Middle Triassic Xingyi Fauna of southwestern China were examined using high-resolution computed tomography (CT) scanning. The CT images allow a few refinements and supplements in cranial anatomy.
Jiayu Xu +5 more
doaj +3 more sources