Also known as Sandstone concretions in westward-sloping field, north of the Dallas road, 0.6 mile west of Kaufman, Kaufman County; these concretions occupy same stratigraphic position as those 15 feet above base of section described under 7545.

Where: Kaufman County, Texas (32.6° N, 96.3° W: paleocoordinates 37.9° N, 73.9° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Nacatoch Sand Formation, Maastrichtian (72.1 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; concretionary sandstone

Size class: mesofossils

Reposited in the USGS

• L. W. Stephenson 1928

Primary reference: L. W. Stephenson. 1941. The larger invertebrate fossils of the Navarro group of Texas. The University of Texas Publication 4101:1-625 [M. Kosnik/M. Kosnik]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 7550: authorized by Matt Kosnik, entered by Matt Kosnik on 18.07.2000, edited by Uta Merkel

Creative Commons license: CC BY (attribution)