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Micropachycephalosaurus hongtuyanensis
Taxonomy
Micropachycephalosaurus hongtuyanensis was named by Dong (1978). Its type specimen is IVPP V.5542, a partial skeleton, and it is a 3D body fossil. Its type locality is Laiyang train station, which is in a Coniacian/Santonian terrestrial claystone in the Jiangjunding Formation of China.
It was considered a nomen dubium by Sereno (2000); it was considered a nomen dubium by Sullivan (2006).
It was considered a nomen dubium by Sereno (2000); it was considered a nomen dubium by Sullivan (2006).
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Micropachycephalosaurus hongtuyanensis Dong |
| 1982 | Micropachycephalosaurus hongtuyanensis Perle et al. p. 121 |
| 1986 | Micropachycephalosaurus hongtuyanensis Zhao p. 71 |
| 1990 | Micropachycephalosaurus hongtuyanensis Maryanska p. 566 |
| 1992 | Micropachycephalosaurus hongtuyanensis Dong p. 166 |
| 2004 | Micropachycephalosaurus hongtuyanensis Maryanska et al. p. 466 |
| 2008 | Micropachycephalosaurus hongtuyanensis Butler et al. p. 10 |
| 2009 | Micropachycephalosaurus hongtuyanensis Butler and Zhao p. 64 |
| 2012 | Micropachycephalosaurus hongtuyanensis Han et al. p. 1391 fig. 14 |
| 2012 | Micropachycephalosaurus hongtuyanensis Wang et al. p. 406 |
| 2016 | Micropachycephalosaurus hongtuyanensis Becerra et al. p. 564 |
| 2017 | Micropachycephalosaurus hongtuyanensis Zhang et al. p. 190 |
| 2018 | Micropachycephalosaurus hongtuyanensis Bell et al. p. 29 |
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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.
†Micropachycephalosaurus hongtuyanensis Dong 1978
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. J. Butler et al. 2008 | Prominent ventral grooves on the most posterior dorsal vertebrae. | |
| R. J. Butler and Q. Zhao 2009 | Small-bodied cerapodan ornithischian distinguished by the presence of prominent anteroposteriorly extending midline grooves on the ventral surface of the centra of the posterior dorsal vertebrae.
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