Conocardium
- Phylum: Mollusca
- Class: Bivalvia
- Order: Conocardioida
- Family: Conocardidae
- Genus: Conocardium
Species of Conocardium present in the Pennsylvanian of the American Midcontinent
Geological Range
Atokan to Virgilian; Extinct.
Paleogeographic Distribution
Texas to Missouri.
Stratigraphic Occurrences
- Virgilian
- Emporia Limestone (OK)
- Graham Formation (Wayland Shale Member) (TX)
- Graham Formation (Gunsight Limestone Member) (TX)
- Graham Formation (Gonzales Creek Shale Member) (TX)
- Graham Formation (Finis Shale Member) (TX)
- Lawrence Formation (Robbins Shale Member) (KS)
- Lawrence Formation (Haskell Limestone Member) (KS)
- Stranger Formation (Iatan Limestone Member) (KS)
- Missourian
- Barnsdall Formation (OK)
- Brad Formation (TX)
- Caddo Creek Formation (Home Creek Limestone Member) (TX)
- Checkerboard Formation (KS)
- Drum Limestone (KS)
- Drum Limestone (MO)
- Drum Limestone (Corbin City Limestone Member) (KS)
- Graford Formation (Brownwood Shale Member) (TX)
- Graford Formation (Wolf Mountain Shale Member) (TX)
- Plattsburg Limestone (Merriam Limestone Member) (KS)
- Stanton Limestone (KS)
- Stanton Limestone (Eudora Shale Member) (OK)
- Stanton Limestone (Stoner Limestone Member) (KS)
- Vilas Shale (OK)
- Wann Formation (OK)
- Desmoinesian
- Boggy Formation (OK)
- Fort Scott Limestone (KS)
- McAlester Formation (OK)
- Millsap Lake Formation (TX)
- Pawnee Limestone (KS)
- Savanna Formation (OK)
- Wewoka Formation (OK)
- Atokan
- Smithwick Shale (TX)
- Unknown Stage
- Bourbon Formation (KS)
- Coal Measures (MO)
- Marble Falls Limestone (TX)
