Texasetes

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Texasetes
Temporal range: Early Cretaceous, 100Ma
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Ornithischia
Suborder: Ankylosauria
Family: Nodosauridae
Genus: Texasetes
Coombs, 1995
Species: † T. pleurohalio
Binomial name
Texasetes pleurohalio
Coombs, 1995

Texasetes (meaning "Texas resident") is a genus of ankylosaurian dinosaur from the late Lower Cretaceous of North America. This poorly known genus has been recovered from the Paw Paw Formation (late Albian) near Haslet, Tarrant County Texas, which has also produced the nodosaurid ankylosaur Pawpawsaurus. Texasetes is estimated to have been 2.5-3 meters (8-10 ft) in length.

Discovery and species[edit]

The holotype and only known specimen (USNM 337987) consists of portions of the scapulocoracoid and pelvis, elements from the fore- and hindlimbs, vertebrae, osteoderms, a skull fragment, and one tooth. These remains were originally mistaken for those of a sauropod by their collector, M. K. Brett-Surman, but were later recognized as an ankylosaurian by Walter P. Coombs, which he named Texasetes pleurohalio. Vickaryous et al. (2004) and Coombs (1995) describe Texasetes as having a horizontally oriented ilium, an imperforate acetabulum, and "characteristically ankylosaur scapula morphology, including a prominent acromion and prespinous fossa."

Classification[edit]

However, Lee (1996) has questioned whether this material is diagnostic and suggests Texasetes is likely a synonym of Pawpawsaurus. Coombs assigned the specimen to the family Nodosauridae, but Vickaryous et al. consider it Ankylosauria incertae sedis.

References[edit]

  • Coombs, W. P. 1995. A nodosaurid ankylosaur (Dinosauria: Ornithischia) from the Lower Cretaceous of Texas. Journal of Vertebrate Paleontology 15(2):298-312.
  • Lee, Y.-N. 1996. A new nodosaurid ankylosaur (Dinosauria, Ornithischia) from the Paw Paw Formation (late Albian) of Texas. Journal of Vertebrate Paleontology 16:232-245.
  • Vickaryous, Maryanska, and Weishampel 2004. Chapter Seventeen: Ankylosauria. in The Dinosauria (2nd edition), Weishampel, D. B., Dodson, P., and Osmólska, H., editors. University of California Press.