Hypsirhophus

Hypsirhophus discurus
Temporal range: Late Jurassic, 146 Ma
↓
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Dinosauria
Order: †Ornithischia
Suborder: †Stegosauria
Family: †Stegosauridae
Genus: Hypsirhophus
Species: H. discurus
Binomial name
Hypsirhophus discurus
Cope, 1878

Hypsirhophus (often spelled Hypsirophus) is a dubious genus of stegosaurian dinosaurs. It contains a single species, Hypsirhophus discurus, which is known only from a fragmentary specimen. The fossil consists of partial vertebrae from the back, three from the tail, and a piece of rib.

The specimen was excavated from Edward Drinker Cope's Quarry 3 near the "Cope's Nipple" site in Garden Park, Colorado, near the very top of the late Jurassic Morrison Formation.[1] In 1878, Cope named the specimen Hypsirhophus discurus. Some later researchers have considered Hypsirhophus to be a synonym of Stegosaurus,[2] or as a nomen dubium,[3] though Ken Carpenter and Peter Galton have suggested that it is distinct based on differences in the vertebrae.[4]

References

  1. ↑ Carpenter, K. (1998). Vertebrate biostratigraphy of the Morrison Formation near Canon City, Colorado. Modern Geology, 23: 407-426.
  2. ↑ Gilmore CW (1914). "Osteology of the armored Dinosauria in the United States National Museum, with special reference to the genus Stegosaurus". Series: Smithsonian Institution. United States National Museum. Bulletin 89. Government Printing Office, Washington (89).
  3. ↑ Maidment, S. C. R.; Brassey, Charlotte; Barrett, Paul Michael (2015). "The Postcranial Skeleton of an Exceptionally Complete Individual of the Plated Dinosaur Stegosaurus stenops (Dinosauria: Thyreophora) from the Upper Jurassic Morrison Formation of Wyoming, U.S.A.". PLoS ONE. 10 (10): e0138352. doi:10.1371/journal.pone.0138352.
  4. ↑ Galton, P.M. (2010). "Species of plated dinosaur Stegosaurus (Morrison Formation, Late Jurassic) of western USA: new type species designation needed". Swiss Journal of Geosciences. 103 (2): 187–198. doi:10.1007/s00015-010-0022-4.
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