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Paraplacodus
Taxonomy
Paraplacodus was named by Peyer (1931) [Sepkoski's age data: Tr Anis-u Tr Ladi-u Sepkoski's reference number: 940].
It was assigned to Placodontidae by Kuhn (1971), Carroll (1988); to Paraplacodontidae by Rieppel (2000), Rieppel (2000); and to Placodontia by Sepkoski (2002).
It was assigned to Placodontidae by Kuhn (1971), Carroll (1988); to Paraplacodontidae by Rieppel (2000), Rieppel (2000); and to Placodontia by Sepkoski (2002).
Species
Entered
by J. Sepkoski on 2003-01-23; modified by R. Benson on 2013-04-30
Synonymy list
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| O. Rieppel 2000 | Three long, pointed and strongly procumbent teeth on each premaxilla; seven hemispheric maxillary teeth; dermatocranial cheek region strongly excavated, jugal L-shaped; quadratojugal absent; postfrontal extending far anteriorly along dorsal margin of orbit; two elongated, pointed and strongly procumbent anterior dentary teeth followed by seven hemispheric teeth; low coronoid process with the coronoid exposed in lateral view; dorsal ribs with distinct, fan-shaped and overlapping uncinate processes; ilium with narrow and tall dorsal process; osteoderms absent. |