Unenlagiinae

Unenlagiines
Temporal range: Late Cretaceous, 94–70 Ma
Buitreraptor skeleton
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Clade:Dinosauria
Order:Saurischia
Suborder:Theropoda
Family:†Dromaeosauridae
Subfamily:†Unenlagiinae
Bonaparte, 1999
Type species
Unenlagia comahuensis
Novas & Puerta, 1997
Genera

Unenlagiinae is a subfamily of dromaeosaurid theropods. Unenlagiines are known from South America and Antarctica.[1]

Description

Most unenlagiines have been discovered in Argentina. The largest was Austroraptor, which measured up to 5–6 m (16.4–19.7 ft) in length, making it the largest Unenlagiine as well as one of the largest dromaeosaurids.[2] The subfamily is distinguished from tails stiffened by lengthy chevrons and superior processes, sharp articulate claws, and a posteriorly oriented pubis. Their distinct anatomy from Laurasian Dromaeosaurids was likely a consequence of the breakup of Pangea into Gondwana and Laurasia, which resulted in the geological isolation of Unenlagiinae from their relatives, allowing for a separate evolutionary path.[3]

See also

References

  1. ↑ "Unenlagiinae". Paleobiology Database. Retrieved 31 July 2013.
  2. ↑ Orozco, José (December 17, 2008). ""Bizarre" New Dinosaur: Giant Raptor Found in Argentina". National Geographic News. Retrieved 2017-12-12.
  3. ↑ GIANECHINI, FEDERICO A. (2011). "Unenlagiinae revisited: dromaeosaurid theropods from South America" (PDF). Anais da Academia Brasileira de Ciências (in English & Spanish). Ciudad Autónoma de Buenos Aires, Argentina: Brazilian Academy of Sciences. 83 (1): 163–195. doi:10.1590/s0001-37652011000100009. Retrieved 2017-12-12.


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