Complex dental wear analysis reveals dietary shift in Triassic placodonts (Sauropsida, Sauropterygia) [PDF]
Swiss Journal of PalaeontologyPlacodonts were durophagous reptiles of the Triassic seas with robust skulls, jaws, and enlarged, flat, pebble-like teeth. During their evolution, they underwent gradual craniodental changes from the Early Anisian to the Rhaetian, such as a reduction in ...
Kinga Gere +4 more
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Diverse Aquatic Adaptations in Nothosaurus spp. (Sauropterygia)-Inferences from Humeral Histology and Microanatomy. [PDF]
PLoS ONE, 2016 Mid-diaphyseal cortical bone tissue in humeri of Nothosaurus spp. consists of coarse parallel-fibered bone, finer and higher organized parallel-fibered bone, and lamellar bone.
Nicole Klein +4 more
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A new pachypleurosaur from the Early Ladinian Prosanto Formation in the Eastern Alps of Switzerland [PDF]
Swiss Journal of Palaeontology, 2022 The Alpine Prosanto Formation (Middle Triassic) cropping out in the Ducan region in eastern Switzerland has yielded a rich fish and reptile fauna. Here, we present new pachypleurosaur remains from the upper part of the formation (Early Ladinian), similar
Nicole Klein +5 more
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A new, exceptionally preserved juvenile specimen of Eusaurosphargis dalsassoi (Diapsida) and implications for Mesozoic marine diapsid phylogeny [PDF]
Scientific Reports, 2017 Recently it was suggested that the phylogenetic clustering of Mesozoic marine reptile lineages, such as thalattosaurs, the very successful fish-shaped ichthyosaurs and sauropterygians (including plesiosaurs), among others, in a so-called ‘superclade’ is ...
Torsten M. Scheyer +5 more
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Thalattosauria in time and space: a review of thalattosaur spatiotemporal occurrences, presumed evolutionary relationships and current ecological hypotheses [PDF]
Swiss Journal of PalaeontologyIn the wake of the greatest mass extinction in Earth’s history, the End-Permian Mass Extinction, the Triassic was a time of recovery and innovation.
Dylan Bastiaans
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The enigmatic marine reptile nanchangosaurus from the lower triassic of Hubei, China and the phylogenetic affinities of Hupehsuchia. [PDF]
PLoS ONE, 2014 The study of the holotype and of a new specimen of Nanchangosaurus suni (Reptilia; Diapsida; Hupehsuchia) revealed a suite of hitherto unrecognized characters.
Xiao-hong Chen +4 more
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A large marine eosauropterygian reptile with affinities to nothosauroid diapsids from the Early Triassic of British Columbia, Canada [PDF]
Acta Palaeontologica Polonica, 2019 Sauropterygia, one of the main clades of Mesozoic marine reptiles, diversified shortly after the Permo-Triassic biotic crisis and afterwards remained one of the major components of Early Triassic and later Mesozoic marine ecosystems.
Torsten M. Scheyer +2 more
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The evolutionary history of polycotylid plesiosaurians [PDF]
Royal Society Open Science, 2018 Polycotylidae is a clade of plesiosaurians that appeared during the Early Cretaceous and became speciose and abundant early in the Late Cretaceous. However, this radiation is poorly understood.
V. Fischer +4 more
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Deep‐time invention and hydrodynamic convergences through amniote flipper evolution
The Anatomical Record, Volume 306, Issue 6, Page 1323-1355, June 2023., 2023 Abstract The diapsid plesiosaurs were pelagic and inhabited the oceans from the Triassic to the Cretaceous. A key evolutionary character of plesiosaurs is the four wing‐like flippers. While it is mostly accepted that plesiosaurs were underwater fliers like marine turtles, penguins, and maybe whales, other swimming styles have been suggested in the past.
Anna Krahl, Ingmar Werneburg
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Dental ontogeny and replacement in Pliosauridae [PDF]
Royal Society Open Science, 2015 Dental morphology and patterns of tooth replacement in representatives of the clade Pliosauridae (Reptilia, Sauropterygia) are evaluated in detail.
Judyth Sassoon +2 more
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