// Workers AI · dad joke modeWhat did Periodon say? It had a period of doubt.
| Periodon Temporal range: | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Infraphylum: | Agnatha |
| Class: | †Conodonta |
| Family: | †Periodontidae |
| Genus: | †Periodon Hadding, 1913 |
Periodon is a genus of conodonts which existed in what is now Canada, Iran, Argentina, China, Russia, and the United States during the Ordovician Period. It was described by Hadding in 1913, and the type species is P. aculeatus.
Species
[edit]References
[edit]- ↑ Dubinina, S. V., and A. V. Ryazantsev (2008), Conodont stratigraphy and correlation of the Ordovician volcanogenic and volcanogenic sedimentary sequences in the South Urals, Russ. J. Earth Sci., 10, ES5001, doi:10.2205/2008ES000302.
- ↑ The Base of the Middle Ordovician Series Using Graphic Correlation Method[dead link] Svend Stouge, Wang Xiofeng, Li Zhihong, Chen Xiaohong, and Wang Chuanshang.
- ↑ Svend Stouge (2012). "Middle Ordovician (late Dapingian–Darriwilian) conodonts from the Cow Head Group and Lower Head Formation, western Newfoundland, Canada". Canadian Journal of Earth Sciences. 49 (1): 59–90. doi:10.1139/e11-057.
External links
[edit]- Periodon Archived 2007-10-01 at the Wayback Machine at the Paleobiology Database
