Where: South Dakota (45.5° N, 100.5° W: paleocoordinates 51.1° N, 74.0° W)

• coordinate stated in text

When: Baculites baculus ammonoid zone, Mobridge Member (Pierre Shale Formation), Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• Lower part of Mobridge member of Pierre Shale

• group of beds-level stratigraphic resolution

Environment/lithology: marine; limestone

Size class: macrofossils

Collected by Harry A. Tourtelot in 1956

Primary reference: W. A. Cobban. 2015. USGS Locality Compendium. [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 234106: authorized by Pete Wagner, entered by Pete Wagner on 17.03.2024

Creative Commons license: CC BY (attribution)