Baltoniodus
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | †Conodonta |
Family: | †Balognathidae |
Genus: | †Baltoniodus Lindström, 1971[1] |
Species | |
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Baltoniodus is an extinct genus of conodonts.
The base of the Dapingian, the first stage of the Middle Ordovician, is defined as the first appearanceofBaltoniodus triangularis.[2]
The Whiterock Stage refers mainly to the early Middle Ordovician in North America, it is often used in the older literature in a global sense. The Whiterock Stage is given a range from 471.8 (ca. 472) to 462 m.y.a., spanning close to 10 million years. Officially its start is defined by the potentially lowest occurrence of the conodont Protoprioniodus arandaorBaltoniodus triangularis.
B. gerdae has been found in the early Sandbian Bromide Formation, in Oklahoma, USA.
Baltoniodus |
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