Where: Iowa (42.0° N, 91.0° W: paleocoordinates 23.1° S, 53.5° W)
• coordinate based on political unit
• basin-level geographic resolution
When: Scotch Grove Formation, Wenlock (433.4 - 427.4 Ma)
• Apparently restricted in Iowa to units of mid-Wenlockian age. Waubeek and upper Buck Creek Quarry Members of the upper Scotch Grove Formation.
• formation-level stratigraphic resolution
Environment/lithology: deep subtidal ramp; dolomitic, shelly/skeletal wackestone and dolomitic, shelly/skeletal lime mudstone
•SEP environmental call based on given description and same vol. page 807.
Collection methods: See Frest et al. (1999--PBDB ref. 4379) for echinoderms of Dimerocrinites-Hedeina Community. I have combined two lists with abundances in table 50.6, as well as additional taxa mentioned in text.
Primary reference: B. J. Witzke and M. E. Johnson. 1999. Silurian brachiopod and related benthic communities from carbonate platform and mound environments of Iowa and surrounding areas. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 806-840 [M. Foote/M. Foote/M. Foote]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 25019: authorized by Michael Foote, entered by Michael Foote on 26.08.2002
Creative Commons license: CC BY (attribution)