Topic
Shoshonius
About: Shoshonius is a research topic. Over the lifetime, 4 publications have been published within this topic receiving 212 citations.
Papers
TL;DR: Examination of nasolacrimal morphology of a broad sample of extant primates, as well as a number of Paleogene fossils, indicates that Omomyiformes is not a monophyletic group and that few of its members possessed the derived oronasal morphology that characterizes crown haplorhines.
4 citations
TL;DR: Two new species of washakiin omomyids occur in deposits of early Bridgerian age, and Washakius izetti is closely related to Utahia kayi, possibly related to Stockia, and Hemiacodon is sometimes included in the Washakiini.
Abstract: Two new species of washakiin omomyids occur in deposits of early Bridgerian age. Shoshonius bowni, sp. nov., from the Aycross Formation, Absaroka Range, Wyoming, differs from S. cooperi in having e...
TL;DR: The anatomy of four skulls of the early Eocene omomyid Shoshonius cooperi — the first cranial material recovered for this genus—strongly suggests that ShOSHonius shares a more recent common ancestry with Tarsius than do either anthropoids or other Eocene Omomyids for which cranial anatomy is known.
Abstract: THE phylogenetic relationships of living tarsiers and extinct omomyid primates are critical for deciphering the origin and relationships of primate higher taxa, particularly anthropoids1–6. Three competing phylogenetic hypotheses are: (1) tarsiers are most closely related to early Cenozoic Omomyidae5–8, particularly genera such as Necrolemur from the late Eocene of Europe9–11; (2) tarsiers share a more recent common ancestry with anthropoids than they do with any known omomyid2–4,12,13; (3) tarsiers and/or omomyids are most closely related to strepsirhines14. The anatomy of four skulls of the early Eocene omomyid Shoshonius cooperi — the first cranial material recovered for this genus—strongly suggests that Shoshonius shares a more recent common ancestry with Tarsius than do either anthropoids or other Eocene omomyids for which cranial anatomy is known. If the primate suborder Haplor-hini (anthropoids, omomyids, tarsiids) is monophyletic, the phylogenetic position of Shoshonius requires that anthropoids and Tarsius diverged by at least the early Eocene, some 15 million years before the first appearance of anthropoids in the fossil record15–17.
TL;DR: Despite the overall similarities in the external postcranial anatomy of Omomys and Shoshonius, the results of this study indicate potentially important differences in the magnitude of the external loads at the hip joint, suggesting that these animals engaged in divergent locomotor behaviors.
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2018 | 1 |
| 2002 | 1 |
| 1991 | 1 |
| 1990 | 1 |