Puneet Varma (Editor)

Texacephale

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Kingdom  Animalia
Clade  Dinosauria
Phylum  Chordata
Order  Ornithischia
Class  Reptilia
Family  â€ Pachycephalosauridae
Rank  Species
Texacephale httpssitesgooglecomsitelongrichrsrc1468
Genus  â€ Texacephale Longrich, Sankey & Tanke, 2010
Similar  Hanssuesia, Colepiocephale, Amtocephale, Sphaerotholus, Gravitholus

Texacephale is a genus of basal pachycephalosaurid dinosaur from the Campanian stage of the Late Cretaceous. The type species is Texacephale langstoni; its fossils were discovered in the Aguja Formation and described in 2010 by Longrich, Sankey and Tanke. The generic name means Texas + "head" (kephale in Greek) in reference to its place of discovery, and the specific name honors Wann Langston.

Contents

Discovery

The holotype specimen of Texacephale, LSUMNS 20010, is composed of fused frontals and parietals. A second specimen, LSUMNS 20012, is composed of an incomplete frontoparietal dome. According to the team, the fossilized dome of the animal possessed five to six vertical flanges on each lateral side, connecting it with the postorbital bone. The team interpreted these structures as interlocking "gears" that would help deal with stress on the bone during head-butting, a hypothetical behavior that had earlier been challenged by other authors.

Phylogeny

Cladogram after Longrich, Sankey and Tanke (2010).

References

Texacephale Wikipedia


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