Where: Cheyenne County, Kansas (39.9° N, 101.8° W: paleocoordinates 45.9° N, 77.7° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Baculites clinolobatus + Hoploscaphites nicolletii ammonoid zone, Beecher Island Member (Pierre Shale Formation), Early/Lower Maastrichtian to Early/Lower Maastrichtian (70.6 - 66.0 Ma)
• AGE: Early-Late Maastrichtian, on the basis of ammonoid biostratigraphy; Baculites clinolobatus-Hoploscaphites nicolletii zone.
• group of beds-level stratigraphic resolution
Environment/lithology: offshore; lithified limestone and lithified shale
Size class: macrofossils
Primary reference: M. K. Elias. 1933. Cephalopods of the Pierre Formation of Wallace County, Kansas, and adjacent area. The University of Kansas Science Bulletin 21(9):289-363 [W. Kiessling/U. Merkel/U. Merkel]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 71837: authorized by Wolfgang Kiessling, entered by Uta Merkel on 14.05.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Baculites grandis Hall and Meek 1854 ammonite
? Baculites clinolobatus Elias 1933 ammonite | |
"Discoscaphites abyssinus" = Hoploscaphites nicolletii
"Discoscaphites abyssinus" = Hoploscaphites nicolletii Morton 1842 ammonite |