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Cyamodontoidea
Taxonomy
Cyamodontoidea was named by Nopcsa (1923).
It was assigned to Placodontia by Rieppel (2000) and Li and Rieppel (2002); and to Placodontia by Rieppel (2001) and Miguel Chaves et al. (2018).
It was assigned to Placodontia by Rieppel (2000) and Li and Rieppel (2002); and to Placodontia by Rieppel (2001) and Miguel Chaves et al. (2018).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1923 | Cyamodontoidea Nopcsa |
| 1956 | Psephosaurus picardi Brotzen |
| 1959 | Psephosaurus picardi Haas p. 18 |
| 2000 | Cyamodontoidea Rieppel |
| 2001 | Cyamodontoidea Rieppel p. 71 |
| 2002 | Cyamodontoidea Li and Rieppel p. 403 |
| 2018 | Cyamodontoidea Miguel Chaves et al. |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Subor. †Cyamodontoidea Nopcsa 1923
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Unr. †Placochelyida Romer 1956
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G. †Psephoderma von Meyer 1858
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†Psephoderma alpinum Meyer 1858
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Invalid names: Placochelys malanchinii Boni 1948 [synonym], Placochelys stoppanii Pinna 1980 [synonym], Placodus zitteli Amman 1878 [synonym]
†Psephoderma anglicum Meyer 1864
†Psephoderma sculptata Rieppel 2002
Invalid names: Placochelyanus Pinna 1976 [synonym]
Invalid names: Macroplacidae Rieppel 2000 [empty], Protenodontosauridae Rieppel 2000 [empty]
Fm. †Placochelyidae Jaekel 1910
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G. †Priscochelys Karl 2005
G. †Psephosauriscus Rieppel 2002
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†Psephosauriscus ramonensis Rieppel 2002
†Psephosauriscus rhombifer Rieppel 2002
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Invalid names: Psephosaurus rhombifer Haas 1959 [replaced]
†Psephosauriscus sinaiticus Rieppel 2002
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Invalid names: Psephosaurus sinaiticus Haas 1959 [replaced]
Invalid names: Psephosaurus picardi Brotzen 1956 [nomen dubium]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| O. Rieppel 2001 | Dermal armor forming a carapace; palatoquadrate cartilage persisting in adult in a recess between epipterygoid and quadrate; broad dorsal process of epipterygoid; epipterygoid sutured primarily to palatine; epipterygoid meets squamosal at dorsal margin of posttemporal fossa; squamosal with otic process enclosing the pteroccipital foramen anteriorly; pineal foramen displaced anteriorly; postfrontal broadly excluded from temporal fossa; two maxillary tooth plates; two palatine tooth plates; anterior palatine tooth plates round; retroarticular process short, with sloping surface; tubercular osteoderms secondarily fused to squamosal. |