Where: Rock County, Wisconsin (42.6° N, 89.2° W: paleocoordinates 21.6° S, 62.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Phragmodus undatus conodont zone, Forreston Member (Grand Detour Formation), Blackriveran (457.3 - 449.6 Ma)
• member-level stratigraphic resolution
Environment/lithology: limestone
Size class: macrofossils
Preservation: cast
Primary reference: J., J.r. Pojeta, D. J. Eernisse, R. D. Hoare and M. D. Henderson. 2003. Echinociton dufoei: a new spiny Ordovician chiton. Journal of Paleontology 77(4):646-654 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 98349: authorized by Pete Wagner, entered by Pete Wagner on 02.10.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Polyplacophora | |
Echinochiton dufoei n. gen. n. sp.
Echinochiton dufoei n. gen. n. sp. Pojeta et al. 2003 chiton | |
Gastropoda | |
? Lophospira sp. Whitfield 1886 snail | |
Trochonema sp. Salter 1859 snail | |
Helicotoma planulata Salter 1859 snail | |
Bivalvia | |
Cyrtodonta huronensis Billings 1858 clam | |
Tancrediopsis sp. Beushausen 1895 clam
Ctenodonta nasuta Hall 1847 clam | |
Cephalopoda | |
aff. Beloitoceras sp. Foerste 1924 |