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Promephitis

From Wikipedia, the free encyclopedia
Extinct genus of carnivores

Promephitis
Temporal range:Miocene -Pliocene
9.3–4.9Ma
Skeleton ofPromephitis sp.,National Natural History Museum of China
Scientific classificationEdit this classification
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Order:Carnivora
Family:Mephitidae
Genus:Promephitis
Gaudry, 1861

Promephitis is an extinct genus ofmephitid, of which several species have been described from theMiocene and earlyPliocene ofEurope andAsia.

Characteristics

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Promephitis sp. skull fromCerro de los Batallones (Spain)

The fossil remains of thePromephitis species, like all members of the skunk family (Mephitidae), have a significant extension ofepitympanic recess, a chamber of themiddle ear, into the region ofmastoid andsquamous parts of thetemporal bones. This extension is recognizable as an inflated bulge on the lateral wall of theskull over the mastoid.[1] In addition, skunks have specific characteristics of the teeth, especially the molars, which distinguish them from othercarnivora. The genusPromephitis also shows a distinctive structure of thepremolar tooth P4 as well as a very small P2, through which they are distinguishable from other genera.[2]

Distribution and temporal classification

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Species ofPromephitis ranged widely inEurasia, and fossils have been found both in Europe and in Asia. They are classified in the lateTertiary, occurring in the middle to late Miocene and early Pliocene epochs less than 10 million years ago.[2]

Taxonomy

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The genus and thetype speciesPromephitis larteti were described in 1861 byJean Albert Gaudry from a fossil found atPikermi inGreece. Since the initial description up to 10 species have been named, but some have since been discarded. Early finds consisted mainly of teeth or fragments of jaw bones. In 2004 Wang & Qiu reported numerous well-preserved skull and skeleton finds from China and described two new species. Currently the following eleven species are recognised:[2]

Skunks

Palaeomephitis

Promephitis

Stink badgers (Mydaus)

other Mephitidae

  • Promephitis larteti Gaudry 1861
  • P. maeotica Alexjew 1916
  • P. alexjewi Schlosser 1924
  • P. malustensis Simionescu 1930
  • P. majori Pilgrim 1933
  • P. hootoni Senyurek 1954
  • P. pristinidens Petter 1963
  • P. brevirostris Meladze 1967
  • P. maxima He and Huang 1991
  • P. qinensis Wang and Qiu 2004
  • P. parvus Wang and Qiu 2004

Within the skunks, the species of the genusPromephitis have been likened to the two extant species ofstink badger (Mydaus) from Southeast Asia.[3] Taken together,Promephitis and the stink badgers are probably the sister group of the fossil species Palaeomephitis steinheimensis,[3] the name applied to the oldest known species of skunks.[1] Within the recent genera, the stink badgers represent the earliest genus; the clade comprising them withPromephitis andPalaeomephitis is considered to be a sister group to all other skunks living today and other fossil forms.[3]

References

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  1. ^abMieczysław Wolsan (1999)."Oldest mephitine cranium and its implications for the origin of skunks"(PDF).Acta Palaeontologica Polonica.44 (2):223–230.
  2. ^abcXiaoming Wang; Zhanxiang Qiu (2004). "Late MiocenePromephitis (Carnivora, Mephitidae) from China".Journal of Vertebrate Paleontology.24 (3):721–731.doi:10.1671/0272-4634(2004)024[0721:LMPCMF]2.0.CO;2.S2CID 21714530.
  3. ^abcMikko Haaramo (7 October 2007)."Mustelidae: Mephitinae". Mikko’s Phylogeny Archive.Archived from the original on 2017-01-14. Retrieved12 November 2017.
Genera ofred pandas,raccoons,skunks,mustelids and their extinct allies
Ailuridae
Ailurinae
Amphictinae
Simocyoninae
Mephitidae
Procyonidae
Ailurus fulgens

Mephitis mephitis

Bassaricyon alleni
Guloninae
Helictidinae
Ictonychinae
Lutrinae
Leptarctinae
Melinae
Mellivorinae
Mustelavinae
Mustelinae
Oligobuninae
Taxidiinae
Gulo gulo

Martes zibellinaMegalictis ferox

Chamitataxus avitus
Promephitis
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