Where: Lyon County, Kansas (38.7° N, 96.3° W: paleocoordinates 0.7° N, 26.5° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Havensville Shale Member (Wreford Formation), Sakmarian (293.5 - 290.1 Ma)

• lower lower lower Havensville Shale

• bed-level stratigraphic resolution

Environment/lithology: offshore; poorly lithified, calcareous mudstone

Size class: macrofossils

Preservation: original calcite

Collection methods: chemical, sieve,

Primary reference: J. F. Pachut and R. J. Cuffey. 1999. Stratigraphic and Geographic Bryozoan Abundance Gradients in the Calcareous Shales of the Wreford Megacyclothem (Lower Permian, Kansas). The University of Kansas Paleontological Contributions New Series (10)1-17 [T. Olszewski/K. Tracy/L. Fall]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 51055: authorized by Tom Olszewski, entered by Tom Olszewski on 26.05.2005

Creative Commons license: CC BY (attribution)