Where: Hampstead County, Arkansas (33.8° N, 93.8° W: paleocoordinates 37.9° N, 65.5° W)

• coordinate based on nearby landmark

When: Marlbrook Marl Formation, Late/Upper Campanian (83.5 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; marl

Size class: macrofossils

Primary reference: C. H. Dane. 1929. Upper Cretaceous formations of southwestern Arkansas. Bulletin of the Arkansas Geological Survey 1:1-215 [M. Carrano/H. Street]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 107499: authorized by Matthew Carrano, entered by Hallie Street on 09.04.2011

Creative Commons license: CC BY (attribution)