Tsaganomyidae

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Tsaganomyidae
Fossil range: Early Oligocene to ?Early Miocene

Fossil

Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Rodentia
Suborder:	Hystricomorpha
Family:	†Tsaganomyidae Matthew & Granger, 1923

Genera

†Tsaganomys
†Cyclomylus
†Coelodontomys

Tsaganomyidae is an extinct family of rodents from Asia. It contains three genera.^[1] Tsaganomyids are generally considered to be related to the Hystricognathi (porcupines and relatives).^[2] Members of Tsaganomyidae were fossorial (digging) rodents that probably used their incisor teeth to dig like some living mole rats.^[3]

[edit] Characteristics

Tsaganomyids had a protrogomorphous zygomasseteric system, a hystricognathous lower jaw, and multiserial enamel in their incisor teeth.^[3]

[edit] References

^ Wang, B. (2001). "On Tsaganomyidae (Rodentia, Mammalia) of Asia". American Museum Novitates 3317: 1–50. doi:10.1206/0003-0082(2001)317<0001:OTRMOA>2.0.CO;2.
^ McKenna, M. C, and S. K. Bell (1997). Classification of Mammals Above the Species Level. Columbia University Press. ISBN 023111012X.
^ ^a ^b Bryant, J.D and M.C. McKenna (1995). "Cranial anatomy and phylogenetic position of Tsaganomys altaicus (Mammalia, Rodentia) from the Hsanda Gol Formation (Oligocene), Mongolia". American Museum Novitates 3156: 1–42.

v • d • e Rodent Families

Sciuromorpha	†Allomyidae · Aplodontiidae · †Mylagaulidae · †Reithroparamyidae · Sciuridae · Gliridae

Castorimorpha	†Eutypomyidae · Castoridae · †Rhizospalacidae · †Eomyidae · †Florentiamyidae · †Heliscomyidae · Heteromyidae · Geomyidae

Myomorpha	†Armintomyidae · Dipodidae · †Anomalomyidae · †Simimyidae · Platacanthomyidae · Spalacidae · Calomyscidae · Nesomyidae · Cricetidae · Muridae

Anomaluromorpha	Anomaluridae · †Parapedetidae · Pedetidae

Hystricomorpha	†Tamquammyidae · †Gobiomyidae · Ctenodactylidae · Diatomyidae · †Yuomyidae · †Chapattimyidae · †Tsaganomyidae · †"Baluchimyinae" · †Bathyergoididae · Bathyergidae · Hystricidae · †Myophiomyidae · †Diamantomyidae · †Phiomyidae · †Kenyamyidae · Petromuridae · Thryonomyidae · Erethizontidae · Chinchillidae · Dinomyidae · †Cephalomyidae · Caviidae · Dasyproctidae · †Eocardiidae · Cuniculidae · Ctenomyidae · Octodontidae · †Neoepiblemidae · Abrocomidae · Echimyidae · Myocastoridae · Capromyidae · †Heptaxodontidae

Prehistoric rodents (incertae sedis)	†Eurymylidae · †Alagomyidae · †Archetypomyidae · †Cocomyidae · †Ivanantoniidae · †Laredomyidae · †Ischyromyidae · †Theridomyidae · †Protoptychidae · †Zegdoumyidae · †Sciuravidae · †Cylindrodontidae · †Zelomyidae

† indicates extinct taxa