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Hesperaletes borineyi
Taxonomy
Hesperaletes borineyi was named by Colbert (2006). Its type specimen is SDSNH 31326, a partial skull, and it is a 3D body fossil. Its type locality is College Boulevard Site 14 (SDSNH 3378), which is in an Uintan terrestrial siliciclastic in the Santiago Formation of California.
Synonymy list
| Year | Name and author |
|---|---|
| 2006 | Hesperaletes borineyi Colbert p. 698 figs. 1-7, 8A, 9 |
| 2020 | Hesperaletes borineyi Lofgren et al. |
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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.
†Hesperaletes borineyi Colbert 2006
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. W. Colbert 2006 | Dentary symphysis posterior to p1. Although H. borineyi may also be diagnosed by m2 length being less than 45% of adult dentary depth, SDSNH 49627 from the early Uintan SS locality approaches this value (47%). This is much deeper than other early Uintan samples, and suggests that this represents a continuous rather than a discrete evolutionary character trans- formation (see Colbert, 2006). The following features, currently unknown in early Uintan Hesperaletes, may also be apomorphic for H. borineyi: maxillary fossae posteriorly confluent with narial chamber; variably developed posteriorly directed nasal processes on dorsal skull table; and generally delicate cranial bones as manifested by slender premaxillae, slender jugals, shallow depth of orbital floor, and most other elements |
Measurements
No measurements are available
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| Source: superf = superfamily, subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Carroll 1988, Lillegraven 1979, Ji et al. 2002, Colbert and Schoch 1998 | |||||
Age range: Early/Lower Uintan or 46.20000 to 39.70000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Uintan | USA (California) | Hesperaletes borineyi (16776) | |
| Late/Upper Uintan | USA (California) | Tapiroidea indet. (16585) Tapiroidea new genus, sp.A [M.W. Colbert 1993] (16780) | |
| Uintan | USA (California) | Tapiroidea indet. (type locality: 16547) Tapiroidea new genus, sp. A [M.W. Colbert 1993] (16615) | |
| Late/Upper Uintan - Duchesnean | USA (Montana) | Hesperaletes borineyi (230860) |