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Genypterus valdesensis
Taxonomy
Genypterus valdesensis was named by Riva Rossi et al. (2000). Its type specimen is MPEFPV 614, a partial skeleton (almost complete skull articu- lated with the anterior precaudal vertebrae), and it is a 3D body fossil. Its type locality is Punta San Román, which is in a Tortonian coastal sandstone in the Puerto Madryn Formation of Argentina.
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Genypterus valdesensis Riva Rossi et al. p. 645 |
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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.
†Genypterus valdesensis Riva Rossi et al. 2000
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. Riva Rossi et al. 2000 | Genypterus valdesensis differs from all other species of Genypterus by the presence of a foramen on infra- orbital 3 and by the square shape of infraorbital 4. Furthermore an array of morphological features taken in combination dif- ferentiates G. valdesensis from the remaining species of the genus; it differs from G. blacodes (????capensis), G. chilensis and G. maculatus by the dorsal profile of the neurocranium which is slightly slanted toward the supraoccipital, by the presence of a projection on the infraorbital 4, the presence of a central projection on the extrascapula; it differs from G. blacodes, G. bras- iliensis and G. chilensis by the posteriorly projected walls of the foramen magnum. From G. chilensis and G. maculatus it differs as follows: quadrate spine with a crest, an expanded supracleithrum, and posterior lamina of the cleithrum backwardly directed. Finally, G. valdesensis differs from G. brasiliensis by the following: ventral fossa of the frontal expanded, frontal and pterosphenotic bearing an oval depression; and the straight posterior border of the opercle. |
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009, Kiessling 2004 | |||||
Age range: Tortonian or 11.63000 to 7.24600 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tortonian | Argentina (Patagonia) | Genypterus valdesensis (type locality: 59053) | |
| Late/Upper Miocene | Argentina (Chubut) | Genypterus valdesensis (211703) |