Nemegtbaatar
| Nemegtbaatar | |
|---|---|
| |
| Reconstructed skull | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | †Multituberculata |
| Superfamily: | †Djadochtatherioidea |
| Genus: | †Nemegtbaatar |
| Species: | †N. gobiensis
|
| Binomial name | |
| †Nemegtbaatar gobiensis Zofia Kielan-Jaworowska, 1974
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Nemegtbaatar is an
suborder Cimolodonta and is a member of the superfamily Djadochtatherioidea
.
The genus Nemegtbaatar (Kielan-Jaworowska, 1974) was named after the
dental formula of 2.0.4.21.0.2.2 with a "roughly triangular" snout. [3] Nemegtbaatar is possibly derived from a Bulganbaatar ancestor, based on a comparison of their dentition.[4]
Nemegtbaatar was a relatively large member of Djadochtatherioidea, with a skull length of up to 4.2 centimetres (1.7 in) and estimated adult body mass of 210 grams (7.4 oz), gerbil. [6]
Fossil specimens were collected during several Polish-Mongolian expeditions that took place during the 1960s and 1970s, during which this species was discovered. At least one specimen is in the Institute of Paleobiology collection of the
Polish Academy of Science at Warsaw, (ZPAL MgM-1/76). Fossil remains of Nemegtbaatar are unusually complete, allowing for significant reconstructive analyses to be performed on them. [7] [8][9]
Notes
References
- Chen, Meng; Wilson, Gregory P. (2015). "A multivariate approach to infer locomotor modes in Mesozoic mammals". Paleobiology. 41 (2): 280–312. .
- Dykes, Trevor. "Mesozoic Mammals; Djadochtatherioidea, an internet directory". Archived from the original on 21 April 2003.
- Hurum, J.H. (1998). "The braincase of two Late Cretaceous Asian multituberculates studied by serial sections". Acta Palaeontologica Polonica. 43 (1): 21–52.
- Kielan-Jaworowska, Zofia (1974). "Multituberculate succession in the Late Cretaceous of the Gobi Desert (Mongolia)". Palaeontologica Polonica. 30: 23–44.
- Kielan-Jaworowska, Zofia; Hurum, J.H. (2001). "Phylogeny and Systematics of Multituberculate Mammals". Paleontology. 44 (3): 389–429. .
- Turnbull, W.D. (1995). "Book Review, Postcranial anatomy and habits of Asian multituberculate mammals: : Z. Kielan-Jaworowska and P.P. Gambaryan, 1994. Scandinavian University Press, Oslo, Norway. Paperback, 92 pp. ISBN 82-00-37650-8". Earth-Science Reviews. 39 (3–4): 267–268. .
- Wilson, Gregory P.; Evans, Alistair R.; Corfe, Ian J.; Smits, Peter D.; Fortelius, Mikael; Jernvall, Jukka (2012). "Adaptive radiation of multituberculate mammals before the extinction of dinosaurs". Nature. 483: 457–460. .
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