Glen Dean Formation
23 distinct taxa, from 46 fossil occurrences the Paleobiology Database records under this name, spanning 335–323 Mya.
Kentucky, Illinois · US
23 taxa · 46 fossils · 335–323 MyaFiled under the Okaw Group.
Macrostrat places this rock in the Okaw Group. 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
- Cavusgnathus
- Idioprioniodus
- Oulodus
- Hibbardella
- Ozarkodina
- Gnathodus
- Lonchodina
- Orthonychia chesterense
- Roundya
- Spathognathodus
- Bellerophon chesterensis
- Coledium explanatum
- Cymatospira welleri
- Euconospira sturgeoni
- Geniculatus
- Kladognathus
- Lepetopsis chesterensis
- Naticopsis (Naticopsis)
- Patellilabia chesterensis
- Platyceras subrotundum
- Platyzona
- Porcellia chesterensis
- Salterospira chesterensis
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.