Species of Heteralosia present in the Pennsylvanian of the American Midcontinent
Morrowan to Virgilian; Extinct.
Texas to Kansas.
- Calhoun Shale (KS)
- Graham Formation (Wayland Shale Member) (TX)
- Drum Limestone (KS)
- Stanton Limestone (Stoner Limestone Member) (KS)
- Wyandotte Limestone (Argentine Limestone Member) (KS)
- Wapanucka Limestone (OK)