Also known as La Rosita; USGS # 8223

Where: Maverick County, Texas (28.6° N, 100.4° W: paleocoordinates 34.8° N, 79.3° W)

• small collection-level geographic resolution

When: middle Member (Escondido Formation), Maastrichtian (72.1 - 66.0 Ma)

• Haustator bilira assemblage zone.

• member-level stratigraphic resolution

Environment/lithology: estuary or bay; glauconitic, gray, calcareous siltstone

Size class: mesofossils

Preservation: original calcite, replaced with calcite

Reposited in the USGS

• Stephenson collection

Primary reference: N. F. Sohl and C. F. Koch. 1984. Upper Cretaceous (Maestrichtian) larger invertebrate Fossils from the Haustator bilira Assemblage Zone in the west gulf Coastal Plain. USGS Open File Report 84-687:1-282 [M. Kosnik/M. Kosnik]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 4618: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999, edited by Austin Hendy

Creative Commons license: CC BY (attribution)