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 Periodon flabellum Lindström, 1954 Periodon zgierzensis Dzik, 1976 Periodon aculeatus Hadding, 1913Dubinina, 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. Periodon selenopsis Serpagli, 1974The Base of the Middle Ordovician Series Using Graphic Correlation Method Svend Stouge, Wang Xiofeng, Li Zhihong, Chen Xiaohong, and Wang Chuanshang. Periodon macrodentatus (Graves & Ellison 1941) Periodon hankensis Svend Stouge, 2012
References
External links Periodon at the Paleobiology Database