Where: Texas (31.9° N, 106.1° W: paleocoordinates 0.6° N, 36.6° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Hueco Group, Asselian to Asselian (298.9 - 279.3 Ma)

• "Dark gray limestone of the age of the Coal Measures"

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, gray limestone

Size class: macrofossils

Preservation: replaced with silica

Collected by George G. Shumard in 1855

• Shumard's specimens were destroyed in a fire

Primary reference: B. F. Shumard. 1859. Notice of fossils from the Permian strata of Texas and New Mexico obtained by the United States expedition under Capt. John Pope, for boring artesian wells along the 32nd parallel, with descriptions of new species from these strata and the Coal Measures of that region. Transactions of the Academy of Science of St. Louis 1:387-402 [P. Wagner/P. Wagner/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 133740: authorized by Matthew Clapham, entered by Matthew Clapham on 27.09.2012

Creative Commons license: CC BY (attribution)