Where: Wisconsin (43.0° N, 88.0° W)
• Paleocoordinates: 26.4° S, 85.2° W (Wright 2013)
• coordinate based on political unit
• local area-level geographic resolution
When: Racine Dolomite Formation, Wenlock to Wenlock (432.9 - 422.7 Ma)
• General age of community stated as Racine Dolomite [and presumably equivalents?], Late Wenlock to Ludlow.
• formation-level stratigraphic resolution
Environment/lithology: deep subtidal ramp; dolomitic, argillaceous lime mudstone
•SEP environmental call based on given information and regional context
Collection methods: Relative abundances given for trilobites. The data are for collections amassed over many years. Other taxa not listed include brachiopods, pisocrinid crinoids, nautiloids, gastropods, rugose corals, trace fossils.
Primary reference: D. G. Mikulic. 1999. Silurian trilobite associations in North America. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 793-798 [M. Foote/M. Foote/M. Foote]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 24937: authorized by Michael Foote, entered by Michael Foote on 23.08.2002
Creative Commons license: CC0 (CC0)
Taxonomic list
| unclassified | |
|
| |
| Artiopoda | |
|
Harpidella sp. M'Coy 1849 trilobite | |
"Proetus handwerki" = Pseudogerastos handwerki
"Proetus handwerki" = Pseudogerastos handwerki Weller 1907 trilobite | |
|
Illaenoides triloba trilobite
Bumastus sp. Murchison 1839 trilobite
Bumastus cf. cuniculus Hall 1868 trilobite | |
|
Leonaspis sp. Richter and Richter 1917 trilobite
Acidaspis sp. Murchison 1839 trilobite
Ceratocephala cf. goniata Warder 1838 trilobite | |
|
Trochurus welleri trilobite
Dicranopeltis decipiens Weller 1907 trilobite | |
|
Sphaerexochus cf. romingeri Hall 1868 trilobite
Cheirurus cf. niagarensis Hall 1868 trilobite
Deiphon americanus trilobite | |
|
Dalmanites illinoisensis trilobite
Dalmanites platycaudatus trilobite | |
|
Eophacops handwerki trilobite | |
"Sthenarocalymene celebra" = Calymene celebra
"Sthenarocalymene celebra" = Calymene celebra Raymond 1916 trilobite | |