Genasauria

Taxobox
name = Genasauria
fossil_range = Triassic-Cretaceous


image_width = 200px
image_caption =
regnum = Animalia
phylum = Chordata
classis = Sauropsida
superordo = Dinosauria
ordo = Ornithischia
unranked_familia = Genasauria
unranked_familia_authority = Sereno, 1986
subdivision_ranks = Suborders
subdivision =
* Cerapoda
* Thyreophora

Genasauria is an extinct clade of beaked, herbivorous dinosaurs which were prey for carnivorous theropods. The group was first named by paleontologist Paul Sereno in 1986, and is typically split into Thyreophora, a group of armored dinosaurs; and Cerapoda, which included the horned and duck-billed dinosaurs. Genasauria, as defined by Sereno, consists of "Ankylosaurus magniventris", "Pachycephalosaurus wyomingensis", "Parasaurolophus walkeri", "Stegosaurus stenops", "Triceratops horridus", their most recent common ancestor, and all descendants. The name Genasauria was used almost exclusively by Sereno for several years, but has gained greater usage in recent years.

References

*Sereno, P.C. (1986). "Phylogeny of the bird-hipped dinosaurs (order Ornithischia)". "National Geographic Research" 2(2): 234-256.

External links

* [http://www.geol.umd.edu/~tholtz/G104/handouts/104GenasauriaPhyl.pdf One definition of Genasauria]