Beech Creek Formation
31 distinct taxa, from 120 fossil occurrences the Paleobiology Database records under this name, spanning 335–323 Mya.
Indiana, Illinois · US
31 taxa · 120 fossils · 335–323 MyaFiled under the Okaw Group.
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12 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
- Martinia contracta
- Productus
- Linoproductus
- Anthracospirifer leidyi
- Pentremites
- Composita trinuclea
- Archimedes
- Echinoconchus alternatus
- Amplexizaphrentis
- Composita subquadrata
- Orthotetes kaskaskiensis
- Rhynchopora
- Cleiothyridina sublamellosa
- Dictyoclostus inflatus
- Dielasma
- Euomphalus planodorsatus
- Kaskia chesterensis
- Orthonychia chesterense
- Agassizocrinus
- Bellerophon chesterensis
- Cymatospira welleri
- Donaldina marigoldensis
- Eotrochus marigoldensis
- Eumetria
- Euphemites randolphensis
- Girtyella
- Patellilabia chesterensis
- Retispira ornatus
- Schellwienella
- Schuchertella costatula
- Yochelsonospira tenuilineata
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.