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Kryptobaatar

Mammalia - Multituberculata - Djadochtatheriidae

Synonyms
Synonymy list
YearName and author
1969Gobibaatar Kielan-Jaworowska p. 38
1969Kryptobaatar Kielan-Jaworowska p. 44
1970Gobibaatar Kielan-Jaworowska p. 38
1978Tugrigbaatar Kielan-Jaworowska and Dashzeveg p. 116
1979Gobibaatar Clemens and Kielan-Jaworowska p. 101
1979Kryptobaatar Clemens and Kielan-Jaworowska p. 102
1979Tugrigbaatar Clemens and Kielan-Jaworowska p. 102
1980Kryptobaatar Kielan-Jaworowska p. 170
1997Kryptobaatar Kielan-Jaworowska and Hurum p. 208
1997Kryptobaatar McKenna and Bell
1997Tugrigbaatar McKenna and Bell
2001Kryptobaatar Kielan-Jaworowska and Hurum p. 417
2001Kryptobaatar Smith et al. p. 32
2002Kryptobaatar Kielan-Jaworowska et al.
2003Kryptobaatar Kielan-Jaworowska et al. p. 274
2004Kryptobaatar Kielan-Jaworowska et al. pp. 254, 324 figs. 8.10A, 8.38H, 8.39E, 8.40I

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
RankNameAuthor
Amniota
Synapsida()
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
Allotheria()
orderMultituberculataCope 1884
suborderCimolodonta()
superfamilyDjadochtatherioidea
familyDjadochtatheriidae
genusKryptobaatar

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.

Diagnosis
ReferenceDiagnosis
Z. Kielan-Jaworowska and J. H. Hurum 1997The smallest member of the Djadochtatheriidae nov. (skull length
25-32 mm), most similar to Djadochtatherium, with which it shares an arcuate (rather than trapezoidal as in Catopsbaatar) p4. The p4 in Kryptobaatar is relatively longer than in Djadochtatheriurn and has eight serrations (number unknown in Djadochtatheriurn). Differs from Catopsbaatar in having relatively smaller facial surface of the lacrimal; differs from Djadochtatherium and Catopsbaatar in having a shorter postorbital process. Shares with all MLCM except Tombaatar the alveolus for I3 formed by premaxilla, rather than by both premaxilla and maxilla (autapomorphy of Tombaatar). Differs from Catopsbaatar and Tombaatar in having four upper premolars. Differs from Catopsbaatar in having an inner row of cusps in M1 extending for less than a half, or a half of the tooth length, rather than a long row; shares short inner row of cusps in M1 with Tombaatar and the North American Paracimexomys (LiUegraven 1969; Archibald 1982). Differs from Chulsanbaatar and Sloanbaatar in having cusps on the inner ridge in MI, rather than a smooth ridge. Differs from Tombaatar in having M1 cusp formula 4-5:4:3-5 rather than 5:5:2. Differs from Djadochtatherium and Catopsbaatar in having a shorter snout (but longer than in non-djadochtatheriid djadochtatherians), a relatively less robust lower incisor, and less prominent masseteric and parietal crests.