Sinopa

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Extinct genus of mammals

title: "Sinopa" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["hyaenodonts", "eocene-mammals-of-north-america", "eocene-united-states", "eocene-genus-first-appearances", "fossil-taxa-described-in-1871", "prehistoric-placental-genera"] description: "Extinct genus of mammals" topic_path: "geography/united-states" source: "https://en.wikipedia.org/wiki/Sinopa" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Extinct genus of mammals ::

|fossil_range = Early to Middle Eocene |image = Sinopa grangeri - National Museum of Natural History - IMG 2008.JPG |image_caption = Sinopa major skeleton |image2 = Sinopa rapax 1.jpg |image2_caption = Sinopa rapax skeleton |taxon = Sinopa |authority = Leidy, 1871 |type_species = †Sinopa rapax |type_species_authority = Leidy, 1871 |subdivision_ranks = Species |subdivision =

  • †S. jilinia (Morlo, 2014)
  • †S. lania (Matthew, 1909)
  • †S. longipes (Peterson, 1919)
  • †S. major (Wortman, 1902)
  • †S. minor (Wortman, 1902)
  • †S. piercei (Bown, 1982)
  • †S. pungens (Cope, 1872)
  • †S. rapax (Leidy, 1871)
  • †S. sp. A [AMNH FM 11538] (Matthew, 1906) |synonyms = |Mimocyon (Peterson, 1919) |Proviverroides (Bown, 1982) |Stypolophus (Cope, 1872) |Triacodon (Marsh, 1871) |{{collapsible list |bullets=true |title=S. longipes: |Miacis longipes (Simpson, 1945) |Mimocyon longipes (Peterson, 1919) |Proviverra longipes (Dawson, 1980) |{{collapsible list |bullets=true |title=S. major: |Proviverra grangeri (Van Valen, 1965) |Proviverra major (Gustafson, 1986) |Sinopa grangeri (Matthew, 1906) |{{collapsible list |bullets=true |title=S. minor: |Proviverra minor (Van Valen, 1965) |{{collapsible list |bullets=true |title=S. piercei: |Proviverroides piercei (Bown, 1982) |{{collapsible list |bullets=true |title=S. pungens: |Proviverra pungens (Van Valen, 1965) |Stypolophus pungens (Cope, 1872) |{{collapsible list |bullets=true |title=S. rapax: |Proviverra rapax (Van Valen, 1965) |Sinopa aculeatus (Cope, 1871) |Stypolophus aculeatus (Cope, 1872) |Stypolophus rapax |Triacodon aculeatus (Cope, 1872) |Triacodon fallax (Marsh, 1872) |synonyms_ref =

Sinopa ("swift fox") is an extinct genus of placental mammals from extinct clade Sinopinae within extinct order Hyaenodonta, that lived in North America and Asia from the early to middle Eocene.

Description

Sinopa was a small genus of hyaenodontid mammals. Its carnassial teeth were the second upper molar and the lower third. Sinopa species had an estimated weight of 1.33 to 13.97 kilograms. The type specimen was found in the Bridger formation in Uinta County, Wyoming, and existed 50.3 to 46.2 million years ago.

Taxonomy

The putative African species "Sinopa" ethiopica from Egypt was considered a species of Metasinopa by Savage (1965), although Holroyd (1994) considered it a potential new genus related to Quasiapterodon.

References

References

  1. M. Morlo, K. Bastl, W. Wu and S. F. K. Schaal (2014.) "The first species of ''Sinopa'' (Hyaenodontida, Mammalia) from outside of North America: implications for the history of the genus in the Eocene of Asia and North America." Palaeontology 57(1):111-125
  2. W. D. Matthew (1909.) "The Carnivora and Insectivora of the Bridger Basin, middle Eocene." Memoirs of the American Museum of Natural History 9:289-567
  3. O. A. Peterson (1919.) "Report Upon the Material Discovered in the Upper Eocene of the Uinta Basin by Earl Douglas in the Years 1908-1909, and by O. A. Peterson in 1912." Annals of Carnegie Museum 12(2):40-168
  4. J. L. Wortman (1902.) "Studies of Eocene Mammalia in the Marsh Collection, Peabody Museum." The American Journal of Science, series 4 14(79):17-23
  5. T. M. Bown (1982.) [https://pubs.usgs.gov/pp/1201a/report.pdf "Geology, Paleontology, and Correlation of Eocene Volcaniclastic Rocks, Southeast Absaroka Range, Hot Springs County, Wyoming."] United States Geological Survey Professional Paper 1201-A:A1-A75
  6. E. D. Cope (1872.) "Second account of new Vertebrata from the Bridger Eocene." Proceedings of the American Philosophical Society (separate) 1-3
  7. J. Leidy (1871) [https://www.biodiversitylibrary.org/item/28117#page/228/mode/1up "Remarks on fossil vertebrates from Wyoming."] Proceedings of the Academy of Natural Sciences of Philadelphia 23(2):228-229
  8. L. Van Valen (1965.) "Some European Proviverrini (Mammalia, Deltatheridia)." Palaeontology 8(4):638-665
  9. E. P. Gustafson (1986.) "Carnivorous mammals of the Late Eocene and Early Oligocene of Trans-Pecos Texas." Texas Memorial Museum Bulletin 33:1-66
  10. E. D. Cope (1871.) "Descriptions of some new Vertebrata from the Bridger Group of the Eocene." Proceedings of the American Philosophical Society 12:460-465
  11. J. Alroy (2002.) "Synonymies and reidentifications of North American fossil mammals."
  12. (2014). "New proviverrines (Hyaenodontida) from the early Eocene of Europe; phylogeny and ecological evolution of the Proviverrinae". Zoological Journal of the Linnean Society.
  13. "''Sinopa''". The Paleobiology Database.
  14. (2021). "Carnivorous mammals from the middle Eocene Washakie Formation, Wyoming, USA, and their diversity trajectory in a post-warming world". Journal of Paleontology.
  15. Egi, Naoko. (2001). "Body mass estimates in extinct mammals from limb bone dimensions: the case of North American hyaenodontids.". Palaeontology.
  16. Lewis, M. E., Morlo, M. (2010): Creodonta. – In : Werdelin, L., Sanders, W. (eds), Cenozoic Mammals of Africa. University of California Press, Berkeley, pp. 543–560. https://doi.org/10.1525/california/9780520257214.003.0026

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hyaenodontseocene-mammals-of-north-americaeocene-united-stateseocene-genus-first-appearancesfossil-taxa-described-in-1871prehistoric-placental-genera