Where: Texas (31.0° N, 98.1° W: paleocoordinates 24.6° S, 47.2° W)

When: S. isostichia - crenulata through S. anchoralis - latus zone, Chappel Limestone Formation, Kinderhookian to Kinderhookian (358.9 - 343.0 Ma)

• Late Kinderhookian and Osagean

Environment/lithology: marine; carbonate

Reposited in the USNM

Primary reference: D. K. Brezinski. 1998. Trilobites from the Lower Mississippian starved basin facies of the southern United States. Journal of Paleontology 72(4):718-725 [J. Alroy/M. Sommers/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 4: authorized by John Alroy, entered by Mike Sommers on 20.11.1998

Creative Commons license: CC BY (attribution)