Ornithomerus

Ornithomerus is a genus of iguanodont dinosaurs from the Late Cretaceous.

Not to be confused with Orthomerus.

Ornithomerus
Temporal range: Late Cretaceous Late Cretaceous
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Archosauria
Superorder:
Dinosauria
Order:
Ornithischia
Suborder:
Ornithopoda
Infraorder:
Iguanodontia
Genus:
Ornithomerus

Seeley, 1881
species
  • Ornithomerus gracilis Seeley, 1881

Discovery and species

In 1859 coal mine administrator Pawlowitsch notified the University of Vienna that some fossils had been found in the Gute Hoffnung mine at Muthmannsdorf in Austria. A team headed by geologists Eduard Suess and Ferdinand Stoliczka subsequently uncovered numerous bones of several species, among them those of a euornithopod dinosaur. Stored at the university museum, the finds remained undescribed until they were studied by Emanuel Bunzel from 1870 onwards.[1] Bunzel in 1871 referred PIUW 2349/3 (identified by him as a thoracal rib) to Lacerta sp.[2] In 1881 Harry Govier Seeley recognized PIUW 2349/3 as a femur belonging to Dinosauria and erected the new genus and species Ornithomerus gracilis for it.[3] The generic name is derived from Greek ornithos, "bird", and meros, "shin". Norman and Weishampel (1990) and Norman (2004) listed Ornithomerus, along with Oligosaurus and Mochlodon, as a synonym of Rhabdodon.[4][5] However, Sachs and Hornung (2006) assigned Ornithomerus to Zalmoxes sp. along with the Mochlodon suessi holotype.[6]

The type specimen PIUW 2349/3 was found in the Grünbach Formation of the Gosau Group dating from the Lower Campanian, about 80 million years old.

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References
  1. Bunzel, E. (1870). "Notice of a Fragment of a Reptilian Skull from the Upper Cretaceous of Grunbach". Quarterly Journal of the Geological Society. 26: 394. doi:10.1144/GSL.JGS.1870.026.01-02.35.
  2. E. Bunzel, 1871, "Die Reptilfauna der Gosauformation in der Neuen Welt bei Wiener-Neustadt", Abhandlungen der Kaiserlich-Königlichen Geologischen Reichsanstalt 5: 1-18
  3. Seeley, H. G. (1881). "The Reptile Fauna of the Gosau Formation preserved in the Geological Museum of the University of Vienna: with a Note on the Geological Horizon of the Fossils at Neue Welt, west of Wiener Neustadt, by Edw. Suess, Ph.D., F.M.G.S., &c., Professor of Geology in the University of Vienna, &c". Quarterly Journal of the Geological Society. 37: 620–707. doi:10.1144/GSL.JGS.1881.037.01-04.49.
  4. D. B. Norman and D. B. Weishampel. 1990. Iguanodontidae and related ornithopods. In D. B. Weishampel, H. Osmolska, and P. Dodson (eds.), The Dinosauria. University of California Press, Berkeley 510-533.
  5. D. B. Norman. 2004. Basal Iguanodontia. In D. B. Weishampel, H. Osmolska, and P. Dodson (eds.), The Dinosauria (2nd edition). University of California Press, Berkeley 413-437.
  6. Sachs, S; Hornung, J (2006). Juvenile ornithopod (Dinosauria: Rhabdodontidae) remains from the Upper Cretaceous (Lower Campanian, Gosau Group) of Muthmannsdorf (Lower Austria). Geobios. 39 (3): 415–425. doi:10.1016/j.geobios.2005.01.003.


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