Hypsirhophus

Hypsirhophus (meaning "high roof"; 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.

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

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.[2] Some later researchers have considered Hypsirhophus to be a synonym of Stegosaurus,[3] or a nomen dubium,[4] though Kenneth Carpenter and Peter Galton have suggested that it is distinct and valid based on differences in the vertebrae.[5]

References
  1. Carpenter, K (1998). "Vertebrate biostratigraphy of the Morrison Formation near Canon City, Colorado". Modern Geology. 23: 407–426.
  2. Cope, E. D. (1878). Descriptions of new extinct Vertebrata from the Upper Tertiary and Dakota Formations. Bulletin of the United States Geological and Geographical Survey of the Territories, 4(2): 379-396.
  3. 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).
  4. 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.
  5. 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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