Viverravidae
Viverravidae is an extinct family within the superfamily Miacoidea. They are related to carnivorans, and lived from the early Palaeocene to the Eocene.
Viverravidae | |
---|---|
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
(unranked): | Carnivoramorpha |
Family: | †Viverravidae Wortman & Matthew 1899, p. 136[1] |
Genera | |
†Bryanictis | |
Synonyms | |
Didymictidae[2] |
In viverravids, the number of molars is reduced to two and the skull is elongated. Viverravidae is a monophyletic family, a plesion-group. They are not thought to be ancestral to any extant carnivorans.[3]
The viverravids were thought to be the earliest carnivorans: they first appeared in the Paleocene of North America about 60 million years ago. One author proposed that they should be placed outside the order Carnivora based on cranial morphology.[4]
Wang and Tedford propose that they arose in North America 65-60 million years ago, spread to Asia then later to Europe, and were the first carnivorans and possessed the first true pair of carnassial teeth.[5]:p8
Taxonomy
Taxonomy retrieved from the Paleobiology Database[6]
- Family †Viverravidae Wortman and Matthew 1899 (synonym: Didymictidae Flynn and Galiano 1982)
- Genus †Didymictis Cope 1875
- †Didymictis altidens Cope 1880
- †Didymictis leptomylus Cope 1880
- †Didymictis protenus Cope 1874 (synonym: Didymictis curtidens Cope 1882)
- †Didymictis proteus Polly 1997 (synonym: Didymictis dellensis Dorr 1952)
- †Didymictis vancleveae Robinson 1966
- Genus †Intyrictis Gingerich and Winkler 1985
- †Intyrictis vanvaleni MacIntyre 1966
- Genus †Orientictis Huang and Zheng 2005
- †Orientictis spanios Huang and Zheng 2005
- Genus †Preonictis Tong and Wang 2006
- †Preonictis youngi Tong and Wang 2006
- Genus †Protictis Matthew
- Subgenus. †Protictis (Bryanictis) MacIntyre 1966
- †Bryanictis microlestes Simpson 1935
- †Bryanictis paulus Meehan and Wilson 2002
- Subg. †Protictis (Protictis) Matthew 1937
- Subg. †Protictis (Protictoides) Flynn and Galiano 1982
- †Protictoides aprophatos Flynn and Galiano 1982
- †Protictis agastor Gingerich and Winkler 1985
- †Protictis haydenianus Cope 1882 (synonyms: Didymictis primus Cope 1884, Prolimnocyon macfaddeni Rigby, Jr. 1980)
- †Protictis minor Meehan and Wilson 2002
- †Protictis paralus Holtzman 1978
- †Protictis simpsoni Meehan and Wilson 2002
- Subgenus. †Protictis (Bryanictis) MacIntyre 1966
- Genus †Simpsonictis MacIntyre 1962
- †Simpsonictis jaynanneae Rigby, Jr. 1980
- †Simpsonictis pegus Gingerich and Winkler 1985
- †Simpsonictis tenuis Simpson 1935
- G. †Variviverra Tong and Wang 2006
- †Variviverra vegetatus Tong and Wang 2006
- Genus †Viverravus Marsh 1872
- †Viverravus acutus Matthew and Granger 1915
- †Viverravus gracilis Marsh 1872 (type species)(synonyms: Didymictis dawkinsianus Cope 1881, Harpalodon vulpinus Marsh 1872, Triacodon fallax Marsh 1871, Ziphacodon rugatus Marsh 1872)
- †Viverravus lawsoni Hooker 2010
- †Viverravus laytoni Gingerich and Winkler 1985 (synonym: Viverravus bowni Gingerich 1987)
- †Viverravus lutosus Gazin 1952
- †Viverravus minutus Wortman 1901
- †Viverravus nitidus Marsh 1872
- †Viverravus politus Matthew and Granger 1915 (synonym: Protictis schaffi Gingerich and Winkler 1985)
- †Viverravus rosei Polly 1997
- †Viverravus sicarius Matthew 1909 (synonym: Ziphacodon Marsh 1872)
- Genus †Viverriscus Beard and Dawson 2009
- †Viverriscus omnivorus Beard and Dawson 2009
- incertae sedis:
- Deltatherium durini Van Valen 1978 [nomen dubium] (syonym: Prolimnocyon durini )
- Prolimnocyon macfaddeni Rigby, 1980[7]
- Genus †Didymictis Cope 1875
References
- Wortman, J. L.; Matthew, W. D. (1899). "The ancestry of certain members of the Canidae, Viverridae, and Procyonidae". Bulletin of the American Museum of Natural History. 12: 109–138. hdl:2246/1535. OCLC 46687698.CS1 maint: ref=harv (link)
- "†family Viverravidae Wortman and Matthew 1899 (placental)". Fossilworks. Retrieved 29 June 2019 from the Paleobiology Database.
- Wesley-Hunt, G.D.; Flynn, J.J. (2005). "Phylogeny of the Carnivora: basal relationships among the carnivoramorphans, and assessment of the position of 'Miacoidea' relative to Carnivora". Journal of Systematic Palaeontology. 3: 1–28. doi:10.1017/S1477201904001518.
- Polly, David, Gina D. Wesley-Hunt, Ronald E. Heinrich, Graham Davis and Peter Houde (2006). "Earliest known carnivoran auditory bulla and support for a recent origin of crown-clade carnivora (Eutheria, Mammalia)" (PDF). Palaeontology. 49 (5): 1019–1027. doi:10.1111/j.1475-4983.2006.00586.x.CS1 maint: multiple names: authors list (link)
- Wang, Xiaoming; Tedford, Richard H.; Dogs: Their Fossil Relatives and Evolutionary History. New York: Columbia University Press, 2008.
- Paleobiology Database. Retrieved with Fossilworks (March 3, 2017)
- Zack, Shawn P. (2012). "Deciduous dentition of Didymictis(Carnivoramorpha: Viverravidae): implications for the first appearance of "Creodonta"". Journal of Mammalogy. 93 (3): 808–817. doi:10.1644/11-MAMM-A-245.1. ISSN 0022-2372.
- "9 Request strategies in non-native and native speakers of English", Interlanguage Pragmatics, DE GRUYTER MOUTON, 1995, pp. 223–244, doi:10.1515/9783110885286.223, ISBN 9783110885286