Definition of Placochelyid. Meaning of Placochelyid. Synonyms of Placochelyid

Here you will find one or more explanations in English for the word Placochelyid. Also in the bottom left of the page several parts of wikipedia pages related to the word Placochelyid and, of course, Placochelyid synonyms and on the right images related to the word Placochelyid.

Definition of Placochelyid

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Meaning of Placochelyid from wikipedia

- Placochelyidae is an extinct family of placodonts belonging to the superfamily Cyamodontoidea. Glyphoderma Placochelys Psephosauriscus Psephochelys Psephoderma...
- "protorosaur" archosauromorph, possibly a tanystropheid Glyphoderma G. kangi A placochelyid placodont Guizhouichthyosaurus G. sp. A large predatory merriamosaurian...
- extinct at or slightly before the Tri****ic–Jur****ic boundary were the placochelyids (the last family of placodonts), making plesiosaurs the only surviving...
- synonym of Guizhouichthyosaurus tangae Psephochelys P. polyosteoderma A placochelyid placodont Qianichthyosaurus Q. zhoui A common small toretocnemid ichthyosaur...
- placodont that appears to be intermediate between Cyamodus and the placochelyids, Protenodontosaurus italicus, was described by Giovanni Pinna in 1990...
- lower jaw, but most of the dentary lacks teeth entirely as in the other placochelyids. The carapace, made up of more than 400 osteoderms, is roughly circular...