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Gryphoceratops
Taxonomy
Gryphoceratops was named by Ryan et al. (2012). Its type is Gryphoceratops morrisoni.
It was assigned to Leptoceratopsidae by Ryan et al. (2012), Farke et al. (2014) and Morschhauser et al. (2019).
It was assigned to Leptoceratopsidae by Ryan et al. (2012), Farke et al. (2014) and Morschhauser et al. (2019).
Species
G. morrisoni (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2012 | Gryphoceratops Ryan et al. p. 73 |
| 2014 | Gryphoceratops Farke et al. |
| 2019 | Gryphoceratops Morschhauser et al. p. 129 fig. 10 |
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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 | |
|---|---|---|
| M. J. Ryan et al. 2012 | Gryphoceratops is a small leptoceratopsid that can be differentiated from all other members of the clade in having the deepest dentary at midpoint relative to tooth row length, and a sigmoidally curved posterior margin of the predentary symphysial contact that terminates as a butt suture with a posterior margin that is almost perpendicular to the ventral dentary margin at the midpoint of the tooth row. Gryphoceratops shares with Leptoceratops, Prenoceratops and Unescoceratops the presence of the predentary flange. Gryphoceratops shares with Unescoceratops and Cerasinops the recumbent coronoid process, and shares with Unescoceratops the shape of the ventral dentary margin. |