Where: Illinois, Iowa (42.0° N, 90.5° W)
• Paleocoordinates: 11.7° S, 115.3° W (Wright 2013)
• coordinate estimated from map
• basin-level geographic resolution
When: Guttenberg Formation (Galena Group), Rocklandian to Rocklandian (457.3 - 449.6 Ma)
• formation-level stratigraphic resolution
Environment/lithology: gray limestone and carbonaceous 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 23457: authorized by Steven Holland, entered by Tori Hanson on 15.07.2002
Creative Commons license: CC0 (CC0)
Taxonomic list
unclassified | |
Amecystis woodi Broadhead and Strimple 1975
Pleurocystites squamosus Billings 1874 | |
Crinoidea | |
Periglyptocrinus spinuliferus Sea lily
Pycnocrinus gerki Sea lily
Pycnocrinus multibrachialis Sea lily | |
Archaeocrinus sp. Wachsmuth and Springer 1881 Sea lily | |
Reteocrinus rocktonensis Sea lily | |
Cupulocrinus jewetti Sea lily
Cupulocrinus levorsoni Sea lily | |
Dendrocrinus sp. Hall 1852 Sea lily
Grenprisia billingsi Sea lily | |
"Isotomocrinus tenuis" = Cincinnaticrinus varibrachialus
"Isotomocrinus tenuis" = Cincinnaticrinus varibrachialus Warn and Strimple 1977 Sea lily | |
Cremacrinus punctatus Sea lily
Cremacrinus guttenbergensis Kolata 1975 Sea lily | |
Cyclocystoidea | |
Cyclocystoides sp. Salter and Billings 1858 | |
Asteroidea | |
"Promopalaeaster wilsoni" = Pegoasterella pompom
"Promopalaeaster wilsoni" = Pegoasterella pompom Blake and Koniecki 2020 sea star | |
Edrioasteroidea | |
Agelacrinites sp. Vanuxem 1842 | |
Stylophora | |