Seymouriamorpha
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Seymouriamorpha are an extinct group of tetrapods known from the Carboniferous and Permian periods. They have long been considered stem-amniotes, and most paleontologists still accept this point of vi
Seymouria 1
Kotlassia
Reptiliomorpha
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Reptiliomorpha is a clade containing the amniotes and those tetrapods that share a more recent common ancestor with amniotes than with living amphibians. It was defined by Michel Laurin and Vallin and
Seymouriamorpha
…extinct group of tetrapods (terrestrial vertebrates) known from the Carboniferous and Permian periods. They have long been considered stem-amniotes (reptiliomorphs), and most paleontologists still accept this point of view, but some analyses suggest that seymouriamorphs are stem-tetrapods (not more closely related…
Limnoscelis, a carnivorous diadectomorph
Gephyrostegus, a small terrestrial tetrapod
Discosauriscus, a neotenic seymouriamorph
Archeria, an aquatic embolomere