Also known as USGS locality number 8877

Where: Baylor County, Texas (33.6° N, 99.0° W: paleocoordinates 0.3° N, 29.4° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Belle Plains Formation, Sakmarian to Sakmarian (293.5 - 272.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; poorly lithified shale

Size class: macrofossils

Preservation: adpression

Reposited in the USNM

Collection methods: surface (in situ),

• These specimens were among the collections made by David White in 1910. Material from this area was the source of White's paper (White, D. The characters of the fossil plant Gigantopteris Schenk and its occurence in North America. Proc. U.S. Nat. Mus. 41:493-516. 1912.) dealing with Gigantopteris americana.

•

•However, the material discussed in Mamay 1954, 1976 is a mixture of newly collected material and White's material. Mamay (1976) states that he was unable to exactly relocate White's localities, although the name of one of White's localities (Castle Hollow) may correspond to the description of Mamay (1976) of a broad depression with fossiliferous shale outcropping around its rim.

Primary reference: S. H. Mamay. 1976. Paleozoic origin of the cycads. U.S. Geological Survey Professional Paper 934 [H. Sims/S. Ostrowski]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 11152: authorized by Hallie Sims, entered by Summer Ostrowski on 23.07.2001, edited by Heather Lindon and Emma Dunne

Creative Commons license: CC BY (attribution)