Opisthocoelicaudiinae

Opisthocoelicaudiines
Temporal range: Late Cretaceous
Alamosaurus herd
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Order: Saurischia
Suborder: Sauropodomorpha
Clade: Titanosauria
Family: Saltasauridae
Subfamily: Opisthocoelicaudiinae
McIntosh, 1990
Genera
Two Alamosaurus sanjuanensis.

The Opisthocoelicaudiinae is a clade of titanosaurian dinosaurs from the Late Cretaceous, ranked as a subfamily. Opisthocoelicaudiines are known from China, Mongolia, and the United States (New Mexico, Texas, and Utah).[1] Three genera have been assigned to Opisthocoelicaudiinae: Alamosaurus, Borealosaurus, and Opisthocoelicaudia (the type genus).[3] It was named by John S. McIntosh in 1990.[1] The hands of opisthocoelicaudiines lacked wrist bones and phalanges.[4]

References

  1. 1 2 3 4 The Paleobiology Database: Opisthocoelicaudiinae
  2. The Paleobiology Database: Borealosaurus
  3. González Riga, Bernardo J.; Previtera, Elena; Pirrone, Cecilia A. (2009). "Malarguesaurus florenciae gen. et sp. nov., a new titanosauriform (Dinosauria, Sauropoda) from the Upper Cretaceous of Mendoza, Argentina". Cretaceous Research 30 (1): 135–148. doi:10.1016/j.cretres.2008.06.006.
  4. Tidwell, Virginia; Carpenter, Kenneth (2005). Thunder-Lizards: The Sauropodomorph Dinosaurs. Bloomington, Indiana: Indiana University Press. p. 339. ISBN 0-253-34542-1. Retrieved April 6, 2010.


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