Where: Minnesota (44.0° N, 92.0° W: paleocoordinates 19.1° S, 62.9° W)
• coordinate estimated from map
• basin-level geographic resolution
When: Cummingsville Formation, Shermanian (457.3 - 449.6 Ma)
• formation-level stratigraphic resolution
Environment/lithology: limestone and shale
Size class: macrofossils
Primary reference: D. R. Kolata, J. C. Brower, and T. J. Frest. 1987. Upper Mississippi Valley Champlainian and Cincinnatian echinoderms. Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35 179-181 [S. Holland/T. Hanson/T. Hanson]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 23403: authorized by Steven Holland, entered by Tori Hanson on 14.07.2002, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Edrioasteroidea | |
Edrioaster bigsbyi Billings 1858 | |
Pyrgocystis sardesoni Bather 1915 | |
Echinoidea | |
Neobothriocidaris templetoni sea urchin | |
Crinoidea | |
Cremacrinus guttenbergensis Kolata 1975 Sea lily | |
Dendrocrinus aff. acutidactylus Billings 1859 Sea lily | |
Cupulocrinus molanderi Sea lily
Cupulocrinus humilis Billings 1857 Sea lily | |
Hybocrinus conicus Billings 1857 Sea lily | |
Glyptocrinus tridactylus Sea lily
Glyptocrinus spp. Hall 1847 Sea lily
Pycnocrinus sardesoni Sea lily | |
Pleurocystites squamosus Billings 1874
Pleurocystites strimplei Brower 1999 | |
Soluta | |