Sauropterygia
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Sauropterygia is an extinct clade of diverse, generally marine reptiles that developed from terrestrial ancestors soon after the end-Permian extinction and flourished during the Triassic before all ex
Placodus gigas 2
Henodus chelyops 1
Skeleton Nothosauria naturkundemuseum Berlin
Keichousaurus hui fossil
Sauropterygiformes
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Sauropterygiformes is a proposed clade of largely marine reptiles that includes Sauropterygia and its close extinct relatives including several other marine reptile groups from the Triassic period. Th
Sauropterygia
…Eusaurosphargis, and Saurosphargidae (some studies find varying members of this group to be within Sauropterygia proper). Wang et al. 2022 coined Sauropterygiformes to include Sauropterygia (which was found to include Palatodonta) proper, as well as Hanosaurus, Helveticosaurus, and Saurosphargidae (including…
Sinosaurosphargis NT small
Atopodentosaurus small
Psephoderma new NT