Powell Formation
15 distinct taxa, from 18 fossil occurrences the Paleobiology Database records under this name, spanning 483–471 Mya.
Arkansas, Virginia, Missouri, Tennessee · US
15 taxa · 18 fossils · 483–471 MyaMembers recorded: Black Ledge Dolomite.
Macrostrat dates this rock 472–468 Ma. Macrostrat’s own record
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6 distinct localities, where the rock is now rather than where it was laid down. Tectonics draws the world it belonged to.
When
What has been found
- Polytoechia inaequistriata
- Centrotarphyceras yellvillense
- Avaoceras wellsense
- Bridgeites planidorsalis
- Campbelloceras brevicameratum
- Centrotarphyceras
- Centrotarphyceras macdonaldi
- Clytoceras capax
- Eurystomites bolarensis
- Hormotoma artemesia
- Leptocyrtoceras powellense
- Onychoceras subrotundum
- Syntrophopsis
- Tarphyceras chadwickense
- Trocholitoceras bevani
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.