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Erdenetesaurus
Taxonomy
Erdenetesaurus was named by Sulimski (1975). Its type is Erdenetesaurus robinsonae.
It was corrected as Erdenetosaurus by Alifanov (2000).
It was assigned to Polyglyphanodontidae by Sulimski (1975); to Teiidae by Carroll (1988), Gao and Fox (1991), Alifanov (1993); to Cherminsauridae by Alifanov (2000); to Macrocephalosauridae by Alifanov (2000); and to Polyglyphanodontinae by Estes (1983), Gao and Norell (2000), Xu et al. (2014).
It was corrected as Erdenetosaurus by Alifanov (2000).
It was assigned to Polyglyphanodontidae by Sulimski (1975); to Teiidae by Carroll (1988), Gao and Fox (1991), Alifanov (1993); to Cherminsauridae by Alifanov (2000); to Macrocephalosauridae by Alifanov (2000); and to Polyglyphanodontinae by Estes (1983), Gao and Norell (2000), Xu et al. (2014).
Species
E. robinsonae (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1975 | Erdenetesaurus Sulimski p. 78 fig. 14 |
| 1983 | Erdenetesaurus Estes |
| 1988 | Erdenetesaurus Carroll |
| 1991 | Erdenetesaurus Gao and Fox |
| 1993 | Erdenetosaurus Alifanov p. 10 |
| 2000 | Erdenetesaurus Alifanov |
| 2000 | Erdenetosaurus Alifanov p. 373 |
| 2000 | Erdenetesaurus Gao and Norell p. 72 |
| 2014 | Erdenetesaurus 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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Sulimski 1975 | Dental formula pm?3+m?18/d?19. Skull high, well arched. Parieto-occipital region elongated. Maxilla moderately high, slightly inclined medially dorsal. Postfrontal with poorly developed distal processes. Supratemporal fossa small, oval, slit shaped. Supratemporal bone squamous, .vestigial. Parietal foramen in parietal. Posterior processes of the parietal diverge at an angle of about 80°. Frontals partially fused, posteriorly widened. Descending thickening of the parietal well developed. Ectopterygoid with a long anterior process. Lower jaw slender with slight posterior backward inclination of coronoid process. Retroarticular process wide and long. Dentition pleurodont, almost homodont. Tooth replacement of iguanid type. Cheek tooth crowns rounded in outline, mediolaterally compressed with six-seven radially arranged denticles. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Kiessling 2004, Hendy et al. 2009 | |||||
Age range: base of the Middle Campanian to the top of the Late/Upper Campanian or 83.60000 to 72.20000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Campanian - Late/Upper Campanian | Mongolia (Omnogov) | E. robinsonae (28243 62914) |