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Kryptobaatar
Taxonomy
Kryptobaatar was named by Kielan-Jaworowska (1969) [also said to be 1969]. Its type is Kryptobaatar dashzevegi.
It was assigned to Eucosmodontinae by Clemens and Kielan-Jaworowska (1979); to Eucosmodontidae by Kielan-Jaworowska (1969), Kielan-Jaworowska (1980) and McKenna and Bell (1997); to Djadochtatheriidae by Kielan-Jaworowska and Hurum (1997), Kielan-Jaworowska and Hurum (2001), Smith et al. (2001), Kielan-Jaworowska et al. (2002) and Kielan-Jaworowska et al. (2003); and to Djadochtatherioidea by Kielan-Jaworowska et al. (2004).
It was assigned to Eucosmodontinae by Clemens and Kielan-Jaworowska (1979); to Eucosmodontidae by Kielan-Jaworowska (1969), Kielan-Jaworowska (1980) and McKenna and Bell (1997); to Djadochtatheriidae by Kielan-Jaworowska and Hurum (1997), Kielan-Jaworowska and Hurum (2001), Smith et al. (2001), Kielan-Jaworowska et al. (2002) and Kielan-Jaworowska et al. (2003); and to Djadochtatherioidea by Kielan-Jaworowska et al. (2004).
Species
Synonyms
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Synonymy list
Year | Name and author |
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1969 | Gobibaatar Kielan-Jaworowska p. 38 |
1969 | Kryptobaatar Kielan-Jaworowska p. 44 |
1970 | Gobibaatar Kielan-Jaworowska p. 38 |
1978 | Tugrigbaatar Kielan-Jaworowska and Dashzeveg p. 116 |
1979 | Gobibaatar Clemens and Kielan-Jaworowska p. 101 |
1979 | Kryptobaatar Clemens and Kielan-Jaworowska p. 102 |
1979 | Tugrigbaatar Clemens and Kielan-Jaworowska p. 102 |
1980 | Kryptobaatar Kielan-Jaworowska p. 170 |
1988 | Gobibaatar Carroll p. 38 fig. 1 |
1997 | Kryptobaatar Kielan-Jaworowska and Hurum p. 208 |
1997 | Kryptobaatar McKenna and Bell |
1997 | Tugrigbaatar McKenna and Bell |
2001 | Kryptobaatar Kielan-Jaworowska and Hurum p. 417 |
2001 | Kryptobaatar Smith et al. p. 32 |
2002 | Kryptobaatar Kielan-Jaworowska et al. |
2003 | Kryptobaatar Kielan-Jaworowska et al. p. 274 |
2004 | Kryptobaatar Kielan-Jaworowska et al. pp. 254, 324 figs. 8.10A, 8.38H, 8.39E, 8.40I |
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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.
G. †Kryptobaatar Kielan-Jaworowska 1969
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†Kryptobaatar dashzevegi Kielan-Jaworowska 1969
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Invalid names: Gobibaatar parvus Kielan-Jaworowska 1969 [synonym], Tugrigbaatar saichanensis Kielan-Jaworowska and Dashzeveg 1978 [synonym]
†Kryptobaatar mandahuensis Smith et al. 2001
Invalid names: Gobibaatar Carroll 1988 [synonym], Tugrigbaatar Kielan-Jaworowska and Dashzeveg 1978 [synonym]
Diagnosis
Reference | Diagnosis | |
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Z. Kielan-Jaworowska and J. H. Hurum 1997 | The 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. |