Skip to Main Content

Pseudorthoceras knoxense

Geological Range

Desmoinesian to Virgilian; Extinct.

Paleogeographic Distribution

Texas to Missouri.

Stratigraphic Occurrences

Virgilian
Lawrence Formation (Haskell Limestone Member) (KS)
Stranger Formation (Vinland Shale Member) (KS)
Stranger Formation (Weston Shale Member) (KS)
Missourian
Dennis Limestone (Winterset Limestone Member) (MO)
Drum Limestone (KS)
Wyandotte Limestone (Farley Limestone Member) (KS)
Desmoinesian
Boggy Formation (OK)
East Mountain Shale (TX)
Unknown Stage
Cherokee Shale (KS)
<i>Pseudorthoceras knoxense</i> from the Cherokee Shale of Leavenworth County, Kansas (KUMIP 38592).
Pseudorthoceras knoxense from the Cherokee Shale of Leavenworth County, Kansas (KUMIP 38592).
Virgillian Map
Virgillian Map
Missourian Map
Missourian Map
Desmoinesian Map
Desmoinesian Map