Also known as Clayton

Where: Pulaski County, Illinois (37.2° N, 89.1° W: paleocoordinates 40.4° N, 67.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Clayton Formation, Danian (66.0 - 61.6 Ma)

• "immediately above the K/T (Cretaceous/Tertiary) boundary"; section is "5 to 6 meters" thick

• member-level stratigraphic resolution

Environment/lithology: estuary or bay; bioturbated, fine-grained, medium, glauconitic, green sandstone and gray claystone

Size class: macrofossils

Collection methods: salvage,

• "Fossils were collected and processed from spoil piles"; "at least eight species of pelecypods, 11 species of gastropods, one annelid worm, and three decapod crustaceans" are present but not named

Primary reference: J. A. Holman. 2002. Paleocene turtles and crocodilians directly above the Cretaceous/Tertiary (K/T) boundary in Pulaski County, Illinois. Michigan Academician 34(2):163-174 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 70129: authorized by John Alroy, entered by John Alroy on 18.03.2007

Creative Commons license: CC BY (attribution)