Sinobaatar

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Sinobaatar
Fossil range: Early Cretaceous
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Multituberculata
Suborder: Plagiaulacida
Family: Eobaataridae
Genus: Sinobaatar
Species: S. lingyuanensis
Binomial name
Sinobaatar lingyuanensis
Hu & Wang, 2002

Sinobaatar is a genus of extinct mammal from the Lower Cretaceous of China. It is categorized within the also extinct order Multituberculata and among these it belongs to the plagiaulacid lineage (a possible infraorder). Sinobaatar was a small herbivore during the Mesozoic era, commonly called "the age of the dinosaurs". The genus was named by Hu Y. and Wang Y. in 2002. Sinobaatar lingyuanensis is the only species known to date.

It has been found in Lower Cretaceous strata of the Yixian Formation in Liaoning, China. According to Hu & Wang (2002),

"[t]he dental features of Sinobaatar show again that eobaatarids are obviously intermediate between Late Jurassic multituberculates and the later forms".

Many Multituberculata are only known from teeth, but the type specimen of Sinobataar is a reasonably complete skeleton.

Sinobataar was eaten, at least on occasion, by the feathered dinosaur Sinosauropteryx prima (Hurum et al. 2006).

[edit] Etymology

The name "Sinobaatar" is a Latin and Mongolian mixture and means "Chinese hero". The species name is in honor of Lingyuan City.

[edit] References

  • Hurum, Jørn H.; Luo, Zhe-Xi & Kielan-Jaworowska, Zofia (2006): Were mammals originally venomous? Acta Palaeontologica Polonica 51(1): 1–11. PDF fulltext
  • Kielan-Jaworowska, Zofia & Hurum, Jørn H. (2001): Phylogeny and Systematics of multituberculate mammals. Paleontology 44: 389-429.
  • Hu & Wang (2002): Sinobaatar gen. nov.: First multituberculate from the Jehol Biota of Liaoning, Northeast China. Chinese Science Bulletin 47(11): 933-938.
  • Much of the above material has been derived from Mesozoic Mammals: Plagiaulacidae, Albionbaataridae, Eobaataridae & Arginbaataridae
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