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Pontolis barroni
Taxonomy
Pontolis barroni was named by Biewer et al. (2020). Its type specimen is LACM 122444, a partial skeleton (nearly complete skull with associ- ated mandible and postcranial elements, including atlas, thoracic and caudal vertebrae; left scapula, humerus, radius, ulna, ), and it is a 3D body fossil. Its type locality is Aliso Viejo, which is in a Tortonian marine horizon in the Monterey Formation of California.
Synonymy list
| Year | Name and author |
|---|---|
| 2020 | Pontolis barroni Biewer et al. figs. Figs. 16–22 |
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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.
†Pontolis barroni Biewer et al. 2020
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. N. Biewer et al. 2020 | Pontolis barroni, sp. nov. differs from other species of Pontolis by having postcanine teeth with minor to moderate wear (c. 82[1]). It can be further differentiated from Po. kohnoi by a dorsoventrally thick, laterally broad ptery- goid strut (c. 13[2]), lacking a supraorbital process of the frontal (c. 16[1]), and a double-rooted M1 (c. 77[1]). It can be further dif- ferentiated from cf. Po. magnus by having a mandibular condyle at or slightly above level of tooth row (c. 47[0]), a medial shelf of the angular process (c. 49[1]), an anteroposteriorly short coro- noid process (c. 50[0]), presence of a posterior crista in the lower canines (c. 57[0]; unknown in Po. kohnoi), lower postcanines with well-developed paraconid cusps (c. 66[0]), and lower postcanines with a reduced metaconid (c. 70[1]; unknown in Po. kohnoi). |