Where: Iowa (41.9° N, 90.6° W: paleocoordinates 21.4° S, 55.8° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Welton Member (Scotch Grove Formation), Telychian (438.5 - 433.4 Ma)

• "Late Llandovery (probably C5-C6) to Early Wenlockian." I am calling this Telychian based on Witzke and Johnson (1999, PBDB ref. 7006).

• member-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; dolomitic, shelly/skeletal packstone and dolomitic, shelly/skeletal wackestone

Collection methods: Abundances given for echinoderms (table 45.14).

Primary reference: T. J. Frest, C. E. Brett, and B. J. Witzke. 1999. Caradocian-Gedinnian echinoderm associations of Central and Eastern North America. Paleocommunities--a case study from the Silurian and Lower Devonian 638-783 [M. Foote/K. Koverman/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 26699: authorized by Michael Foote, entered by Michael Foote on 24.10.2002

Creative Commons license: CC BY (attribution)