Protoprioniodus
(Redirected from Protoprioniodus aranda)
Protoprioniodus Temporal range:
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Genus: | †Protoprioniodus |
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Protoprioniodus is an extinct genus of conodonts.
Use in stratigraphy
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 conodonts Protoprioniodus aranda or Baltoniodus triangularis.
References
- ^ Prioniodontacean conodonts from the Emanuel Formation (Lower Ordovician) of Western Australia. RA McTavish, Geologica et Palaeontologica, 1973
External links
- "Protoprioniodus" at the Encyclopedia of Life
- Protoprioniodus at fossilworks.org (retrieved 2 July 2016)
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Categories:
- Articles with short description
- Articles with 'species' microformats
- Encyclopedia of Life ID not in Wikidata
- Taxonbars desynced from Wikidata
- Taxonbar pages requiring a Wikidata item
- Taxonbars with invalid from parameters
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- Prioniodontida genera
- Ordovician conodonts
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