English River Formation
39 distinct taxa, from 44 fossil occurrences the Paleobiology Database records under this name, spanning 372–347 Mya.
Iowa, Iowa/Illinois, Nebraska · US
39 taxa · 44 fossils · 372–347 MyaFiled under the North Hill Group.
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3 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
- Polygnathus
- Bispathodus aculeatus
- Bellerophon (Bellerophon) panneus
- Bellerophon (Bellerophon) vinculatus
- Branmehla
- Eudoxina
- Euomphalus angularis
- Ianthinopsis pinguis
- Icriodus
- Kitakamithyris
- Knightella shumardiana
- Leptoptygma oligospira
- Lingula
- Loxonema
- Mehlina
- Mesoplica
- Naticopsis depressa
- Orbiculoidea
- Ovatia
- Paraphorhynchus
- Patellilabia scriptiferus
- Platyschisma barrisi
- Platyschisma depressa
- Porcellia crassinoda
- Porcellia obliquinoda
- Porcellia rectinoda
- Retispira bilabiatus
- Retispira deflectus
- Rugosochonetes
- Ruthiphiala
- Schizophoria
- Schuchertella
- Serpulospira paradoxus
- Stegocoelia quadricincta
- Straparollus ammon
- Straparollus macromphalus
- Strophostylus bivolve
- Syringothyris
- Whidbornella
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.