From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Temporal range: Late Jurassic, 146 Ma
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Ornithischia
Suborder: Stegosauria
Family: Stegosauridae
Genus: Hypsirhophus
Cope, 1878
Type species
Hypsirhophus discurus
Cope, 1878

Hypsirhophus (often misspelled 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 a nomen dubium,[3] though Kenneth Carpenter and Peter Galton have suggested that it is distinct and valid based on differences in the vertebrae.[4]


  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. PMC 4605687. PMID 26466098.
  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.