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Sloanbaatar
Taxonomy
Sloanbaatar was named by Kielan-Jaworowska (1969). Its type is Sloanbaatar mirabilis. It is the type genus of Sloanbaataridae.
It was assigned to Eucosmodontidae by Kielan-Jaworowska (1969); and to Sloanbaataridae by Kielan-Jaworowska (1974), Clemens and Kielan-Jaworowska (1979), Kielan-Jaworowska and Hurum (1997), McKenna and Bell (1997), Kielan-Jaworowska and Hurum (2001) and Kielan-Jaworowska et al. (2004).
It was assigned to Eucosmodontidae by Kielan-Jaworowska (1969); and to Sloanbaataridae by Kielan-Jaworowska (1974), Clemens and Kielan-Jaworowska (1979), Kielan-Jaworowska and Hurum (1997), McKenna and Bell (1997), Kielan-Jaworowska and Hurum (2001) and Kielan-Jaworowska et al. (2004).
Species
S. mirabilis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1969 | Sloanbaatar Kielan-Jaworowska p. 42 fig. 1 |
| 1974 | Sloanbaatar Kielan-Jaworowska p. 37 |
| 1979 | Sloanbaatar Clemens and Kielan-Jaworowska p. 102 |
| 1997 | Sloanbaatar Kielan-Jaworowska and Hurum p. 207 |
| 1997 | Sloanbaatar McKenna and Bell |
| 2001 | Sloanbaatar Kielan-Jaworowska and Hurum p. 416 |
| 2004 | Sloanbaatar Kielan-Jaworowska et al. pp. 254, 325 figs. 8.4E, 8.38F, 8.39C, 8.40F |
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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. †Sloanbaatar Kielan-Jaworowska 1969
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†Sloanbaatar mirabilis Kielan-Jaworowska 1969
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Z. Kielan-Jaworowska and J. H. Hurum 1997 | The skull (known only in a single specimen of Sloanbaatar
mirabilis) differs from all other djadochtatherians in having a very narrow and rectangular snout, slender zygomatic arches strongly expanded laterally, one pair of the vascular foramina on the nasals and two pairs of palatal vacuities. The snout/skull width ratio (see Fig. 1 for method of measurements) is in Sloanbaatar the lowest among djadochtatherians. The relatively narrow snout is characteristic also of Chulsanbaatar; however, Sloanbaatar differs from Chulsanbaatar in having the zygomatic arches more strongly expanded laterally, one pair of vascular foramina on the nasals and two pairs of palatal vacuities. The facial surface of the lacrimal is possibly roughly quadrangular and relatively smaller than in other djadochtatherians, except Chulsanbaatar. Sloanbaatar shares with Catopsbaatar the incisive foramen placed entirely within the premaxilla. It shares with Catopsbaatar a relatively large angle between the lower margin of the dentary and the occlusal level of the molars. Shares with Kamptobaatar and Nessovbaatar a small and laterally flared coronoid process. Shares with Kamptobaatar, Djadochtatherium, Catopsbaatar, and Nessovbaatar the position of the condyle above the level of the molars and differs in this respect from other djadochtatherians. Differs from other djadochtatherians in having a high (but smaller than in Nessovbaatar) ratio between p4:ml length. Shares with Kryptobaatar a relatively high (eight) number of serrations on p4, but smaller than in Nessovbaatar (ten). |
Measurements
No measurements are available
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| Source: superf = superfamily, c = class, subp = subphylum | |||||
| References: Carroll 1988, Hopson 1973, Hendy et al. 2009, Kielan-Jaworowska et al. 2004 | |||||
Age range: Late/Upper Campanian or 83.50000 to 70.60000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian | Mongolia (Omnogov Aimak) | S. mirabilis (37184) | |
| Late/Upper Campanian | Mongolia (Omnogov) | S. mirabilis (37013) |