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Petrobrasaurus puestohernandezi
Taxonomy
Petrobrasaurus puestohernandezi was named by Filippi et al. (2011). Its type specimen is MAU-Pv-PH-449, a partial skeleton (Two isolated teeth (MAU-Pv-PH-449/1 and 22), posterior portion of possibly middle cervical vertebra (MAU-Pv-PH-449/37), three incomplete posterior dorsal verteb), and it is a 3D body fossil. Its type locality is Puesto Hernández locality, PH 1597 [MAU], which is in a Coniacian/Santonian crevasse splay sandstone/mudstone in the Plottier Formation of Argentina.
Synonymy list
| Year | Name and author |
|---|---|
| 2011 | Petrobrasaurus puestohernandezi Filippi et al. p. 4 |
| 2012 | Petrobrasaurus puestohernandezi Díez Díaz et al. p. 266 |
| 2012 | Petrobrasaurus puestohernandezi Mannion and Otero p. 634 |
| 2013 | Petrobrasaurus puestohernandezi Canudo et al. p. 20 |
| 2015 | Petrobrasaurus puestohernandezi Filippi p. 24 |
| 2015 | Petrobrasaurus puestohernandezi de Jesus Faria et al. p. 156 |
| 2016 | Petrobrasaurus puestohernandezi Cruzado-Caballero et al. p. 146 |
| 2019 | Petrobrasaurus puestohernandezi Cruzado-Caballero et al. p. 212 |
| 2020 | Petrobrasaurus puestohernandezi Páramo et al. p. 373 |
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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.
†Petrobrasaurus puestohernandezi Filippi et al. 2011
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. S. Filippi et al. 2011 | Large sauropod dinosaur characterized by the following combination of derived features: 1) accessory posterior centrodiapophyseal lamina more developed than the posterior centrodiapophyseal lamina; 2) posterior centroparapophyseal lamina extends from the point of contact with the accessory posterior centrodiapophyseal lamina; 3) presence of a broad concave surface delimited by the bony rim of the posterior centroparapophyseal lamina and a rim located on the dorsal edge of the pleurocoel; 4) presence of a deep fossa, sub-circular in outline, on a slightly concave surface delimited by the accessory posterior centrodiapophyseal lamina, the posterior centrodiapophyseal lamina, and a bony rim corresponding to the extension of the posterior centroparapophyseal lamina; 5) presence of a T-shaped anteroposterior expansion on the laminae of the neural arch (pcdl and apcdl); and the anterior caudal vertebrae characterized by: 6) the presence of a deep fossa between the spinoprezygapophyseal lamina and the postzygapophysis, bearing small fossae; 7) prespinal lamina distally thickened; 8) sub-circular small fossae on both sides of the base of the prespinal lamina; and 9) presence of a T-shaped anteroposterior expansion in the spinoprezygapophyseal lamina. |
Measurements
No measurements are available
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| Source: infrao = infraorder | |||||
| Reference: Marsh 1875 | |||||
Age range: base of the Late/Upper Coniacian to the top of the Early/Lower Santonian or 89.80000 to 83.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Coniacian - Early/Lower Santonian | Argentina (Neuquén) | Petrobrasaurus puestohernandezi (type locality: 117450) |