Loc. 16T-2-42C, Honeycut Bend, Pedernales River, 4.5 miles east of Johnson City (Ordovician of the United States)

Where: Blanco County, Texas (30.3° N, 99.4° W: paleocoordinates 19.7° S, 91.2° W)

• outcrop-level geographic resolution

When: Gorman Formation, Demingian (485.4 - 478.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: brown, gray, yellow limestone and chert

• Limestone — sublithographic, yellowish gray to brownish gray, thickly bedded.

•Chert semiporcelaneous, dirty white, occurs as excrescences and massive plates containing many fossils. Also porous, weathered chalky, rounded chert nodules are common.

Size class: macrofossils

Preservation: original silica

Primary reference: J. Bridge and P.E. Cloud. 1947. New gastropods and trilobites critical in the correlation of Lower Ordovician rocks. The American Journal of Science 245:545-559 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 56494: authorized by Pete Wagner, entered by Pete Wagner on 20.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Pentamerida - Clarkellidae
Gastropoda
 Euomphalina - Ophiletidae
Lecanospira sanctisabae Roemer 1849 snail