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Pachygenys thlastesa
Taxonomy
Pachygenys thlastesa was named by Gao and Cheng (1999). Its type specimen is IGV 294, a mandible (Incomplete left mandible with complete lower dentition), and it is a 3D body fossil. Its type locality is Doushan Village, which is in a Barremian terrestrial sandstone/mudstone in the Doushan Formation of China. It is the type species of Pachygenys.
Synonymy list
| Year | Name and author |
|---|---|
| 1999 | Pachygenys thlastesa Gao and Cheng pp. 456-459 figs. 3-4 |
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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.
†Pachygenys thlastesa Gao and Cheng 1999
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| K. Gao and Z. Cheng 1999 | A scincomorph lizard differing from other members of the group in having the following derived character states: posterodorsal process of dentary substantially larger than posteroventral process; dentary tooth row greatly shortened, and confined to anterior one-half of dentary; anterior inferior alveolar foramen opening at level posterior to dentary tooth row; dentary teeth robustly built, with laterally expanded and anteroposteriorly compressed shaft; anteromedial process of coronoid elongated, extending horizontally to same level as surangular notch of dentary; distinct hook-like process present ventrally on anteromedial process of coronoid, preventing splenial from contacting surangular; clearly defined interior opening for trigeminal nerve present between coronoid and surangular; poserior mylohyoid foramen opening at splenial/angular suture. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Kiessling 2004, Carroll 1988, Hendy et al. 2009 | |||||