Where: Bell County, Texas (31.1° N, 97.6° W: paleocoordinates 28.6° N, 57.9° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Walnut Clay Formation, Middle Albian (109.0 - 105.3 Ma)

• STRATIGRAPHIC RELATIONS: From the Walnut Clay, which overlies the Paluxy Sandstone and is overlain by the Comanche Peak Limestone or Goodland Limestone. It is a lateral correlative of the Keys Valley Marl. AGE: Middle Albian; Oxytropidoceras salasi zone. STRATIGRAPHIC POSITION: From unknown position within formation.

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified claystone

Size class: macrofossils

Preservation: cast, mold/impression

Collected by Adkins in 1929

• COLLECTOR: Adkins, 1929. REPOSITORY: Most University of Texas (UT), but also Bureau of Economic Geology, University of Texas (BEG).

Primary reference: K. Young. 1966. Texas Mojsisoviciziinae (Ammonoidea) and the zonation of the Fredricksburg. Geological Society of America Memoir 100:1-225 [A. Hendy/A. Hendy/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 82862: authorized by Austin Hendy, entered by Austin Hendy on 03.08.2008

Creative Commons license: CC BY (attribution)