Hippiewalk, Paint Gap (Cretaceous of the United States)

Also known as TMM 46015, BIBE P-214

Where: Texas (29.4° N, 103.3° W: paleocoordinates 36.2° N, 82.2° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Javelina Formation, Maastrichtian (72.1 - 66.0 Ma)

• The collection site for B. polyphemus occurs at a stratigraphic position at least 57 m, and perhaps as much as 82 m, below the position of the Grapevine Hills tuff bed. Therefore, an Edmontonian NALMA (terminal Campanian to early Maastrichtian) age is inferred

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; sandy conglomerate

• Fluvial flood-plain and associated lacustrine environments several hundred kilometers inland from the Late Cretaceous shoreline
• Deposits consist of well-indurated conglomeratic fluvial sandstones and variegated mudstone intervals with paleosol horizons. At the collection site for TMM 46015-1, the Javelina Formation measures 165 m in thickness. The type specimen of B. polyphemus was found in a sandy conglomeratic fluvial channel horizon

Size class: macrofossils

Reposited in the TMM

Primary reference: S. L. Wick and T. M. Lehman. 2013. A new ceratopsian dinosaur from the Javelina Formation (Maastrichtian) of West Texas and implications for chasmosaurine phylogeny. Naturwissenschaften [P. Mannion/J. Tennant]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 145482: authorized by Philip Mannion, entered by Jonathan Tennant on 03.06.2013, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ornithischia - Hadrosauridae
Saurolophinae indet. Brown 1914 hadrosaurid
TMM 46015-2, 3
 Ornithischia - Ceratopsidae
Bravoceratops polyphemus n. gen. n. sp.
Bravoceratops polyphemus n. gen. n. sp. Wick and Lehman 2013 ceratopsid
TMM 46015-1, a fragmentary, disarticulated adult skull including braincase