Where: Riley County, Kansas (39.1° N, 96.4° W: paleocoordinates 1.6° N, 26.1° W)

• coordinate based on political unit

• small collection-level geographic resolution

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

• upper lower lower Havensville Shale

• bed-level stratigraphic resolution

Environment/lithology: offshore; 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 51044: authorized by Tom Olszewski, entered by Tom Olszewski on 26.05.2005

Creative Commons license: CC BY (attribution)