Aviculopecten

Geological Range

Morrowan to Virgilian; Extinct.

Paleogeographic Distribution

Texas to Iowa.

Stratigraphic Occurrences

Virgilian

Bern Limestone (Wakarusa Limestone Member) (OK)

Bern Limestone (Soldier Creek Shale Member) (KS)

Calhoun Shale (KS, IA)

Deer Creek Limestone (KS)

Deer Creek Limestone (Rock Bluff Limestone Member) (KS)

Deer Creek Limestone (Ozawkie Limestone Member) (KS)

Emporia Limestone (OK)

Graham Formation (TX)

Graham Formation (Wayland Shale Member) (TX)

Graham Formation (Finis Shale Member) (TX)

Harpersville Formation (Waldrip Shale Member) (TX)

Howard Formation (Utopia Limestone Member) (KS)

Kanwaka Shale (KS)

Lawrence Formation (Robbins Shale Member) (KS)

Lawrence Formation (Haskell Limestone Member) (KS)

Lawrence Shale (KS)

Lawrence Shale (Wathena Shale Member) (KS)

Lecompton Limestone (KS)

Lecompton Limestone (Beil Limestone Member) (KS)

Lecompton Limestone (Spring Branch Limestone Member) (KS)

Oread Limestone (KS)

Oread Limestone (Kereford Limestone Member) (KS)

Oread Limestone (Plattsmouth Limestone Member) (KS)

Oread Limestone (Snyderville Shale Member) (KS)

Root Shale (French Creek Shale Member) (NE)

Stotler Limestone (Dover Limestone Member) (KS)

Stranger Formation (KS)

Stranger Formation (Iatan Limestone Member) (KS)

Stranger Formation (Vinland Shale Member) (KS)

Stranger Formation (Weston Shale Member) (KS)

Tecumseh Shale (KS)

Topeka Limestone (KS)

Topeka Limestone (OK)

Wood Siding Formation (Brownville Limestone Member) (KS)

Missourian

Bonner Springs Shale (KS)

Chanute Shale (MO)

Checkerboard Formation (OK, KS)

Cherryvale Shale (Westerville Limestone Member) (KS)

Coffeyville Formation (OK)

Dennis Limestone (KS)

Dennis Limestone (Winterset Limestone Member) (KS, MO)

Drum Limestone (KS)

Drum Limestone (MO)

Galesburg Shale (KS)

Graford Formation (Brownwood Shale Member) (TX)

Iola Limestone (Avant Limestone Member) (OK)

Lane Shale (KS)

Nellie Bly Formation (OK)

Plattsburg Limestone (KS)

Plattsburg Limestone (Merriam Limestone Member) (KS)

Plattsburg Limestone (Spring Hill Limestone Member) (KS)

Stanton Limestone (Captain Creek Limestone Member) (KS)

Stanton Limestone (Rock Lake Shale Member) (KS)

Stanton Limestone (South Bend Limestone Member) (KS)

Stanton Limestone (Stoner Limestone Member) (KS)

Swope Limestone (KS)

Vilas Shale (KS)

Wyandotte Limestone (Farley Limestone Member) (KS)

Wyandotte Limestone (Island Creek Shale Member) (KS)

Desmoinesian

Boggy Formation (OK)

Calvin Sandstone (OK)

Fort Scott Limestone (KS)

Fort Scott Limestone (Blackjack Creek Limestone Member) (KS)

Holdenville Shale (OK)

Holdenville Shale (Homer Limestone Member) (OK)

Lake Murray Formation (Bostwick Member) (OK)

Mingus Shale (TX)

Pawnee Limestone (KS)

Wewoka Formation (OK)

Atokan

Atoka Formation (OK)

Pottsville Formation (Mercer Limestone Member) (OH)

Morrowan

Marble Falls Limestone (TX)

Marble Falls Limestone (Sloan Member) (TX)

Morrow Formation (AR)

Unknown Stage

Cherokee Shale (MO)

Coal Measures (KS)

Coal Measures (MO)