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Omphalosaurus nevadanus
Taxonomy
Omphalosaurus nevadanus was named by Merriam (1906). Its type specimen is UCMP and is a 3D body fossil. Its type locality is American Canyon (UCMP/Stanford), which is in a Triassic marine limestone in the Prida Formation of Nevada. It is the type species of Omphalosaurus.
Synonymy list
| Year | Name and author |
|---|---|
| 1906 | Omphalosaurus nevadanus Merriam p. 72 fig. 1 |
| 1930 | Omphalosaurus nevadanus Hay p. 129 |
| 1998 | Omphalosaurus nevadanus Sander and Faber p. 155 |
| 2003 | Omphalosaurus nevadanus Sander and Faber p. 802 |
| 2010 | Omphalosaurus nevadanus Maisch |
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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.
†Omphalosaurus nevadanus Merriam 1906
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. M. Sander and C. Faber 1998 | Differs from the other two species in the rounded posterior margin of the dentary symphysis. Differs from O. nettarhynchus in its much larger size and its much greater number of teeth. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: Middle Triassic or 247.20000 to 237.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Triassic | USA (Nevada) | Omphalosaurus nevadanus (type locality: 34267) |