Stewartville Formation
128 distinct taxa, from 142 fossil occurrences the Paleobiology Database records under this name, spanning 458–443 Mya.
Minnesota, Iowa, Minnesota · US
128 taxa · 142 fossils · 458–443 MyaMacrostrat places this rock in the Galena Group, and dates it 471–443 Ma. Macrostrat’s own record
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4 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
- Westonoceras
- Lambeoceras
- Probillingsites
- Cupulocrinus
- Cyrtospira wykoffensis
- Endoceras
- Ephippiorthoceras
- Globonema niota
- Porocrinus
- Actinoceras
- Actinodiscus
- Alaskadiscus subacutus
- Ambonychiopsis
- Amecystis
- Astrocystites
- Bucania elliptica
- Bucania sublata
- Carabocrinus
- Carabocrinus radiatus
- Centrocyrtoceras
- Charactoceras
- Cleionychia
- Cremacrinus
- Cuneamya
- Cyclocystoides
- Cyclonema textilis
- Cymatonota
- Cyrtodonta
- Cyrtodontula
- Cyrtolites ornatus
- Cyrtostropha salteri
- Eccyliopterus owenanus
- Ectenocrinus simplex
- Edrioaster bigsbyi
- Eotomaria
- Eroicaspira bellicincta
- Eumorphocystis
- Eunema centralis
- Eunema concinnula
- Eunema simile
The 40 most often recorded, of 128.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.