Johns Valley Formation
The Johns Valley Formation is a geologic formation in Arkansas and Oklahoma. It preserves fossils dating back to the Carboniferous period.
Paleofauna
[Bryozoa]ns
- Acanthocladia
- Fenestella
- Leioclema
- Rhombopora
- ''Sulcoretepora''
[Cephalopod]s
Bactrites CravenocerasCyclocerid DentocerasEumorphocerasGastriocerasGirtyocerasGlaphyritesGoniatitesHomoceratoidesMariceras Metacoceras MitorthocerasMooreocerasNeoglyphiocerasOrthoceracone ParacravenocerasParadimorphoceras PseudoparalegocerasPseudothocerasRayonnoceras- ''Stenopronorites''