PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Chapattimyidae

Mammalia - Rodentia - Chapattimyidae

Taxonomy

Chapattimyidae was named by Hussain et al. (1978).

It was assigned to Ctenodactyloidea by Flynn et al. (1986), Averianov (1996), Kumar et al. (1997).

Subtaxa

Baluchimyinae, Basalomys, Birbalomys (syn. Metkamys), Chapattimyinae (syn. Advenimurinae), Chapattimys, Gumbatomys, Kazygurtia, Subathumys

Synonymy list

Year	Name and author
1978	Chapattimyidae Hussain et al. p. 80
1986	Chapattimyidae Flynn et al. p. 8
1996	Chapattimyidae Averianov
1997	Chapattimyidae Kumar et al.

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
subclass	Synapsida
—	Therapsida	()
infraorder	Cynodontia	()

Rank	Name	Author
—	Mammaliamorpha
—	Mammaliaformes
class	Mammalia
—	Cladotheria
—	Zatheria
subclass	Tribosphenida	()
subclass	Theria
—	Eutheria	()
—	Placentalia
—	Boreoeutheria
—	Euarchontoglires	Murphy et al. 2001
—	Gliriformes	Wyss and Meng 1996
—	Glires	()
—	Simplicidentata	()
order	Rodentia	Bowdich 1821
—	Ctenohystrica	Huchon et al. 2000
superfamily	Ctenodactyloidea
family	Chapattimyidae	Hussain et al. 1978
family	Chapattimyidae	Hussain et al. 1978

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Fm. †Chapattimyidae Hussain et al. 1978

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Subfm. †Baluchimyinae Flynn et al. 1986

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G. †Asterattus Flynn and Cheema 1994

†Asterattus longicristatus Flynn and Cheema 1994

G. †Baluchimys Flynn et al. 1986

†Baluchimys barryi Flynn et al. 1986

†Baluchimys chaudryi Flynn and Cheema 1994

†Baluchimys ganeshapher Flynn et al. 1986

†Baluchimys krabiense Marivaux et al. 2000

G. †Lindsaya Flynn et al. 1986

†Lindsaya derabugtiensis Flynn et al. 1986

G. †Lophibaluchia Flynn et al. 1986

†Lophibaluchia pilbeami Flynn et al. 1986

G. †Wakkamys Kumar et al. 1996

†Wakkamys hartenbergeri Kumar et al. 1996

G. †Zindapiria Flynn and Cheema 1994

†Zindapiria quadricollis Flynn and Cheema 1994

G. †Basalomys Hartenberger 1982

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†Basalomys ijlsti Hussain et al. 1978

†Basalomys lavocati Hussain et al. 1978

†Basalomys vandermeuleni Hussain et al. 1978

G. †Birbalomys Sahni and Khare 1973

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†Birbalomys ibrahimshahi Hussain et al. 1978

†Birbalomys sondaari Hussain et al. 1978

†Birbalomys woodi Sahni and Khare 1973

Invalid names: Metkamys blacki Sahni and Srivastava 1976 [synonym]

Invalid names: Metkamys Sahni and Srivastava 1976 [synonym]

Subfm. †Chapattimyinae Averianov 1996

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G. †Khodzhentia Averianov 1996

†Khodzhentia vinogradovi Averianov 1996

G. †Terrarboreus Shevyreva 1971

Invalid names: Advenimurinae Dashzeveg 1990 [synonym]

G. †Chapattimys Hussain et al. 1978

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†Chapattimys debruijni Hartenberger 1982

†Chapattimys wilsoni Hussain et al. 1978

G. †Gumbatomys Hartenberger 1982

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†Gumbatomys asifi Hartenberger 1982

G. †Kazygurtia Nessov 1987

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†Kazygurtia clivosa Nessov 1987

G. †Subathumys Gupta and Kumar 2015

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†Subathumys globulus Gupta and Kumar 2015

†Subathumys solanorius Gupta and Kumar 2015

Diagnosis

Reference	Diagnosis
L.J. Flynn et al. 1986	Hystricomorphous and sciurognathous rodents primitively with dental formula 1023/1013; premolars large, submolariform to molariform, with P4 retaining four or five major cusps (paracone, metacone, protocone, metaconule, usually hypocone); hypocone lingually placed and apparently developed from posterolingual cingulum shelf on P4 MI-2 and small on M3; metaconule inflated as a major cusp or else modified (incorporated in a loph or lost); P4 oval in outline, length over 20 percent greater than width; lower molars with low anterior cingulum; hypoconulid always well developed on P4 M1 2; metalophulid II present; incisor enamel pauciserial in early forms, multiserial with thin lamellae (3 to 5 prisms wide) in later forms.