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Thinohyus (Bothrolabis) osmonti
Taxonomy
Thinohyus (Bothrolabis) osmonti was named by Sinclair (1905). Its type specimen is UCMP 393, a partial skull (Cranium and mandible), and it is a 3D body fossil. Its type locality is UCMP loc. 839, Black Rock 3, John Day Valley, which is in an Arikareean terrestrial horizon in the John Day Formation of Oregon. It is the type species of Fremdohyus.
It was recombined as Perchoerus osmonti by Hay (1930) and Fremd (1994); it was synonymized subjectively with Thinohyus lentus by Prothero (2009); it was considered a nomen dubium by Wright (1998); it was recombined as Fremdohyus osmonti by Prothero (2016) and Prothero (2021).
It was recombined as Perchoerus osmonti by Hay (1930) and Fremd (1994); it was synonymized subjectively with Thinohyus lentus by Prothero (2009); it was considered a nomen dubium by Wright (1998); it was recombined as Fremdohyus osmonti by Prothero (2016) and Prothero (2021).
Synonymy list
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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.
†Thinohyus (Bothrolabis) osmonti Sinclair 1905
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. J. Sinclair 1905 | Facial region elongate, in profile an even slope from frontals to tips of nasals. Forehead flat between orbits, becoming' slightly convex toward median line. Upper molars increasing little in size posteriorly. M3 without prominent antero-internal style, with narrow heel extending as a shelf across the entire posterior border. Inferior dentition in close series, separated by a long interval from the canine. | |
| D. R. Prothero 2016 | Small hesperhyine peccary with well-developed plesiochoanal fossa, fused pterygoids, narrow orbito-maxillaryfossa, long, narrow, concave rostrum with shallow facial vacuities. Distinguished from most other hesperhyines by its small size, but larger than Marshochoerus socialis (formerly "Cynorca" sociale). | |
| D. R. Prothero 2021 | Small hesperhyine peccary with well-developed plesiochoanal fossa, fused pterygoids, narrow orbito-maxillary fossa, and long narrow concave rostrum with shallow facial vacuities. Distinguished from most other hesperhyines by its small size, but larger than Marshochoerus socialis (formerly "Cynorca" sociale). |
Measurements
No measurements are available
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| Source: f = family, o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Nowak 1991, Hendy et al. 2009, Lillegraven 1979, Nowak 1999, Carroll 1988 | |||||
Collections
No collection or age range data are available