Echinoconchus

Geological Range

Morrowan to Virgilian; Extinct.

Paleogeographic Distribution

Texas to Iowa.

Stratigraphic Occurrences

Virgilian

Calhoun Shale (KS)

Deer Creek Limestone (NE)

Howard Formation (Church Limestone Member) (KS)

Lecompton Limestone (KS)

Lecompton Limestone (Beil Limestone Member) (KS)

Oread Limestone (Kereford Limestone Member) (KS)

Oread Limestone (Plattsmouth Limestone Member) (KS)

Scranton Shale (White Cloud Shale Member) (KS)

Topeka Limestone (KS)

Wood Siding Formation (Brownville Limestone Member) (KS)

Missourian

Brad Formation (Ranger Limestone Member) (TX)

Dennis Limestone (Winterset Limestone Member) (KS)

Drum Limestone (KS)

Drum Limestone (MO)

Graford Formation (Wolf Mountain Shale Member) (TX)

Hertha Limestone (IA)

Hertha Limestone (MO)

Iola Limestone (KS, MO)

Iola Limestone (Raytown Limestone Member) (KS)

Nellie Bly Formation (OK)

Plattsburg Limestone (KS)

Plattsburg Limestone (Hickory Creek Shale Member) (KS)

Plattsburg Limestone (Spring Hill Limestone Member) (KS)

Stanton Limestone (KS)

Stanton Limestone (Captain Creek Limestone Member) (KS)

Stanton Limestone (Eudora Shale Member) (KS)

Stanton Limestone (South Bend Limestone Member) (KS)

Stanton Limestone (Stoner Limestone Member) (KS)

Swope Limestone (Bethany Falls Limestone Member) (KS)

Tacket Formation (KS)

Wyandotte Limestone (KS)

Wyandotte Limestone (Argentine Limestone Member) (KS)

Wyandotte Limestone (Farley Limestone Member) (KS)

Wyandotte Limestone (Island Creek Shale Member) (KS)

Desmoinesian

Blackjack Creek Limestone (MO)

Fort Scott Limestone (KS)

Mingus Shale (TX)

Morrowan

Bloyd Shale (Brentwood Limestone Member) (AR)

Marble Falls Limestone (TX)

Unknown Stage

Coal Measures (KS)

Coal Measures (NE)