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Prolibytherium fusus
Taxonomy
Prolibytherium fusus was named by Danowitz et al. (2016). Its type specimen is PMNH Z 162, a partial skull (caudoventral portion of braincase), and it is a 3D body fossil. Its type locality is Z124, which is in a Burdigalian/Serravallian terrestrial horizon in the Vihowa Formation of Pakistan.
Synonymy list
| Year | Name and author |
|---|---|
| 2016 | Prolibytherium fusus Danowitz et al. p. 203 |
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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.
†Prolibytherium fusus Danowitz et al. 2016
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. Danowitz et al. 2016 | Prolibytherium fusus differs from P. magnieri in the following characters: the anterior basioccipital tuberosities are less distinct, and their surface contains longitudinal ridges instead of small bumps seen on P. magnieri. The elongated fossa between the posterior and anterior basioccipital tuberosities is one unified surface in P. magnieri, and is separated into two plates by a midline longitudinal groove in P. fusus. In P. fusus, the posterior basioccipital tuberosities are more approximated with the ar- ticular surface of the occipital condyles, and are thicker and shorter. The posterior basioccipital tuberosities are also ap- proximated across the midline in P. fusus, separated only by a narrow, deep groove, and the caudal surface contains several bony growths concentrated medially. In P. magnieri, the pos- terior basioccipital tuberosities are separated at the midline, also by a deep groove, and the surface contains a distinct elevated transverse ridge, and no bony growths. The U- shaped ventral margin on the occipital condyles is more shal- low in P. fusus, and the condyles are oriented laterally, where- as the condyles are oriented dorso-laterally and have a deeper U-shaped ventral margin in P. magnieri. The notch between the paraoccipital process and the lateral occipital condyles is thicker and lower in P. fusus (Fig. 4: character 5). |
Measurements
No measurements are available
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| Source: o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009, Nowak 1999, Lillegraven 1979 | |||||
Age range: base of the Burdigalian to the top of the Serravallian or 20.45000 to 11.63000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Burdigalian - Serravallian | Pakistan (Baluchistan) | Prolibytherium fusus (type locality: 180613) |