Bagaraatan

Bagaraatan
Temporal range: Late Cretaceous, 70 Ma
Mandible
Caudal vertebra
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Dinosauria
Order: Saurischia
Suborder: Theropoda
Clade: Coelurosauria
Genus: Bagaraatan
Osmolska, 1996
Type species
Bagaraatan ostromi
Osmolska, 1996
1996 outline showing known elements

Bagaraatan (meaning "small hunter" in Mongolian) was a genus of theropod dinosaur from the Late Cretaceous period. Its fossils were found in the Nemegt Formation of Mongolia. Bagaraatan may have been around 3–4 metres in length.

The type species, B. ostromi, was described by Osmolska in 1996. The post-cranial (ZPAL MgD-I/108) skeleton has been described as "bird-like", while the skull exhibits features of several different theropod groups.

Classification

Holtz classified Bagaraatan as a basal tyrannosauroid, Coria identified it as a troodontid, and Rauhut placed it in Maniraptora. Mark Loewen et al. placed it in basal tyrannosauroidea, agreeing with the placement by Holtz.[1]

Below is the cladogram by Loewen et al. in 2013.[1]

Tyrannosauroidea
Proceratosauridae


Proceratosaurus bradleyi



Kileskus aristotocus



Guanlong wucaii





Sinotyrannus kazuoensis




Juratyrant langhami



Stokesosaurus clevelandi







Dilong paradoxus




Eotyrannus lengi




Bagaraatan ostromi




Raptorex kriegsteini




Dryptosaurus aquilunguis





Alectrosaurus olseni



Xiongguanlong baimoensis





Appalachiosaurus montgomeriensis





Alioramus altai



Alioramus remotus




Tyrannosauridae











References

Sources

External links

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