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Psittacosaurus gobiensis
Taxonomy
Psittacosaurus gobiensis was named by Sereno et al. (2010). Its type specimen is LH PV2, a partial skeleton, and it is a 3D body fossil. Its type locality is southwest of Suhongtu, which is in an Aptian terrestrial horizon in the Bayangobi Formation of China.
Synonymy list
| Year | Name and author |
|---|---|
| 2010 | Psittacosaurus gobiensis Sereno et al. pp. 199-200 figs. 1b, 2-5 |
| 2014 | Psittacosaurus gobiensis Hedrick et al. p. 322 |
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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.
†Psittacosaurus gobiensis Sereno et al. 2010
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. C. Sereno et al. 2010 | Small-bodied psittacosaur characterized by autapomorphies including: (i) pyramidal horn on the postorbital bar composed almost entirely of the postorbital, (ii) postorbital – jugal fossa, (iii) minimum width of the postorbital bar approximately 50 per cent the width of the base of the process, (iv) retroarticular process deflected posteromedially at an angle of 408 from the axis of the mandible, and (v) thin and restricted enamel on medial and lateral aspects of the maxillary and dentary crowns, respectively. None of these autapomorphies appear to be transient during growth or characterize juveniles alone (Sereno 2009). |