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Sineoamphisbaena
Taxonomy
Sineoamphisbaena was named by Wu et al. (1993). Its type is Sineoamphisbaena hexatabularis. It was considered monophyletic by Lee and Caldwell (2000).
It was assigned to Amphisbaenia by Wu et al. (1993), Gao and Hou (1996) and Wu et al. (1996); to Scleroglossa by Lee and Caldwell (2000); to Macrocephalosauridae by Kearney (2003); and to Polyglyphanodontinae by Xu et al. (2014).
It was assigned to Amphisbaenia by Wu et al. (1993), Gao and Hou (1996) and Wu et al. (1996); to Scleroglossa by Lee and Caldwell (2000); to Macrocephalosauridae by Kearney (2003); and to Polyglyphanodontinae by Xu et al. (2014).
Species
S. hexatabularis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1993 | Sineoamphisbaena Wu et al. p. 57 |
| 1996 | Sineoamphisbaena Gao and Hou p. 593 |
| 1996 | Sineoamphisbaena Wu et al. p. 545 |
| 2000 | Sineoamphisbaena Lee and Caldwell |
| 2003 | Sineoamphisbaena Kearney p. 395 |
| 2014 | Sineoamphisbaena Xu 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.
G. †Sineoamphisbaena Wu et al. 1993
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†Sineoamphisbaena hexatabularis Wu et al. 1993
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. Kearney 2003 | Although the status of Macrocephalosauridae is beyond the scope of this paper, the following derived features may be used provisionally to diagnose this taxon as a macrocephalosaurid: (1) nasal-prefrontal contact; (2) presence of a lateral process of the palatal ramus of the pterygoid; (3) postorbital large and extending posteriorly beyond supratemporal fenestra, approaching posterior edge of cranial roof; (4) tall, narrow, dorsal process of maxilla; (5) deep prefrontallacrimal complex excluding maxilla from orbit; and (6) slender, long and pointed supratemporal process of parietal contacting squamosal. |