Orodus (from Greek: ωραίος oraíos, 'beautiful' and Greek: ὀδούς odoús 'tooth')[1] is an extinct genus of cartilaginous fish that lived from the late Pennsylvanian to the early Permian in what is now North America. O. greggi reached around 2–4 metres (6.6–13.1 ft) long, while O. micropterygius just reached 1 metre (3.3 ft).[2][3] It was a member of the holocephali subclass, meaning that it was more closely related to chimaeras and their relatives (eugeneodonts, petalodonts, etc), and not elasmobranchs like sharks and rays.
| Orodus Temporal range:
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| Fossil specimen (FMNH PF 2201) of O. greggi, Field Museum of Natural History | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Order: | †Orodontida |
| Family: | †Orodontidae |
| Genus: | †Orodus Agassiz, 1838 |
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| Synonyms | |
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References
edit- ^ Roberts, George (1839). An etymological and explanatory dictionary of the terms and language of geology. London: Longman, Orme, Brown, Green, & Longmans. p. 126. Retrieved 31 December 2021.
- ^ Ginter, M.; Hampe, O.; Duffin, C. (2010). Handbook of Paleoichthyology. Volume 3D. Chondrichthyes. Paleozoic Elasmobranchii: Teeth. Munich: Verlag Dr. Friedrich Pfeil. ISBN 978-3-89937-116-1.
- ^ Signor, Philip W.; Brett, Carlton E. (1984). "The mid-Paleozoic precursor to the Mesozoic marine revolution". Paleobiology. 10 (2): 229–245. doi:10.1017/S0094837300008174. ISSN 0094-8373.
Sources
edit- Wildlife of Gondwana: Dinosaurs and Other Vertebrates from the Ancient Supercontinent (Life of the Past) by Pat Vickers Rich, Thomas Hewitt Rich, Francesco Coffa, and Steven Morton
- Biology of Sharks and Their Relatives (Marine Biology) by Jeffrey C. Carrier, John A. Musick, and Michael R. Heithaus
- Kansas Geology: An Introduction to Landscapes, Rocks, Minerals, and Fossils by Rex Buchanan
- Major Events in Early Vertebrate Evolution (Systematics Association Special Volume) by Per Erik Ahlberg
External links
edit- Orodus in the Paleobiology Database
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