Ectoganus
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| Ectoganus | |
|---|---|
| |
| head of Ectoganus gliriformis (Robert Bruce Horsfall, 1913) | |
| Scientific classification Edit this classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | †Taeniodonta |
| Family: | †Stylinodontidae |
| Subfamily: | †Stylinodontinae |
| Tribe: | †Ectoganini Cope, 1876[2] |
| Genus: | †Ectoganus Cope, 1874[1] |
| Type species | |
| †Ectoganus gliriformis Cope, 1874
| |
| Species | |
| Synonyms[5] | |
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synonyms of genus: synonyms of species:
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Ectoganus ("outside brightness")[12] is an extinct genus of taeniodonts from tribe Ectoganini within subfamily Stylinodontinae and family Stylinodontidae, that lived in North America from the Late Paleocene to Early Eocene.[13][14][15][16]
Description
[edit | edit source]The schmelzmuster of Ectoganus teeth has one layer, while its Hunter-Schreger bands in its tooth enamel are poorly developed. Its enamel prisms are characterised by a keyhole pattern and an incomplete prism sheath. The dentine of Ectoganus follows the regular pattern of mammals. A thick layer of cementum covers the anterior and posterior walls of the teeth.[17]
Phylogeny
[edit | edit source]| Placentalia |
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References
[edit | edit source]- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Cope, E. D. (1876.) "On the Taeniodonta, a new group of Eocene mammals." Proceedings of the National Academy of Sciences Philadelphia 28:39.
- ^ R. M. Schoch (1981.) "Taxonomy and Biostratigraphy of the Early Tertiary Taeniodonta (Mammalia: Eutheria)" The Geological Society of America Bulletin, Part 2, v. 92
- ^ G. G. Simpson (1929.) "Third contribution to the Fort Union fauna at Bear Creek, Montana." American Museum Novitates 345
- ^ J. Alroy (2002.) "Synonymies and reidentifications of North American fossil mammals."
- ^ E. D. Cope (1894.) "Schlosser on American Eocene Vertebrata in Switzerland." Am. Nat. 28: 585-94.
- ^ Othniel C. Marsh (1876.) "Notice of new Tertiary mammals, V." The American Journal of Science, Series 3 12: 401--404
- ^ Patterson, B. (1949.) "A new genus of taeniodonts from the late Paleocene." Fieldiana, Geol., 10: 41-42.
- ^ Wortman, J. L. (1897.) "The Ganodonta and their relationship to the Edentata." Bulletin of the AMNH; vol. 9, article 6
- ^ E. D. Cope (1877.) "Report upon the extinct Vertebrata obtained in New Mexico by parties of the expedition of 1874." Report upon United States Geographical Surveys West of the One Hundredth Meridian, in charge of First Lieut. G.M. Wheeler, Corps of Engineers, U.S. Army, Vol. IV Paleontology, Part II, pp. 1-365. Government Printing Office, Washington, D.C.
- ^ Daniel A. Guthrie (1967.) "The mammalian fauna of the Lysite Member, Wind River Formation (early Eocene) of Wyoming." Memoirs of the Southern California Academy of Sciences 5:1-53
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Schoch, Robert M. (1986.) "Systematics, functional morphology and macroevolution of the extinct mammalian order Taeniodonta." Bulletin of the Peabody Museum of Natural History, (42).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ S. G. Lucas, R. M. Schoch, and T. E. Williamson (1998.) "Taeniodonta". In C. M. Janis, K. M. Scott, and L. L. Jacobs (eds.), "Evolution of Tertiary Mammals of North America, Volume 1: Terrestrial Carnivores, Ungulates, and Ungulate like Mammals", Cambridge University Press, 703 pages
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