Where: Illinois, Iowa (42.0° N, 90.5° W: paleocoordinates 21.3° S, 63.6° W)
• coordinate estimated from map
• basin-level geographic resolution
When: Dubuque Formation (Galena Group), Edenian (451.0 - 450.2 Ma)
• formation-level stratigraphic resolution
Environment/lithology: argillaceous wackestone
Size class: macrofossils
Collection methods: "[B]ased on a review of the Sardeson Collection at the University of Minnesota, Weiss (1953), Ulrich and Scofield (1895), the unpublished work of Levorson and Gerk, and the list in Stauffer and Thiel (1941)."
Primary reference: R. E. Sloan and G. F. Webers. 1987. Stratigraphic ranges of Middle and Late Ordovician Gastropoda and Monoplacophora of Minnesota. In R. E. Sloan (ed.), Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35 183-186 [S. Holland/T. Hanson/S. Bruning]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 23680: authorized by Steven Holland, entered by Tori Hanson on 18.07.2002, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Fusispira subfusiformis, "Fusispira angustus" = Fusispira angusta, Fusispira intermedia, Fusispira inflata, Fusispira subbrevis, Fusispira ventricosa
Fusispira subfusiformis Hall 1847 snail
"Fusispira angustus" = Fusispira angusta Ulrich and Scofield 1897 snail
Fusispira intermedia Ulrich and Scofield 1897 snail
Fusispira inflata Meek and Worthen 1870 snail
Fusispira subbrevis Ulrich and Scofield 1897 snail
Fusispira ventricosa Hall 1872 snail | |
Eunema quadrisulcata, "Hormotoma major" = Lophospira major
"Hormotoma major" = Lophospira major Hall 1852 snail | |
Liospira micula Hall and Whitney 1862 snail | |
"Plethospira semele" = Brachytomaria semele
"Plethospira semele" = Brachytomaria semele Hall 1861 snail | |
"Lophospira angustina" = Hormotoma minnesotensis, "Michelia oehlerti" = Hormotoma oehlerti, Hormotoma gracilis
"Lophospira angustina" = Hormotoma minnesotensis Ulrich and Scofield 1897 snail
"Michelia oehlerti" = Hormotoma oehlerti Ulrich and Scofield 1897 snail
Hormotoma gracilis Hall 1847 snail | |
"Hormotoma trentonensis" = Omospira trentonensis
"Hormotoma trentonensis" = Omospira trentonensis Ulrich and Scofield 1897 snail | |
Sinuites cancellatus Hall 1847 snail | |
"Ecculiomphalus subrotundus" = Lytospira subrotunda
"Ecculiomphalus subrotundus" = Lytospira subrotunda Ulrich and Scofield 1897 snail | |
Ophiletina sublaxa Ulrich and Scofield 1897 snail | |
"Ecculiomphalus owenanus" = Eccyliopterus owenanus
"Ecculiomphalus owenanus" = Eccyliopterus owenanus Meek and Worthen 1868 snail | |
Maclurites cuneata, "Maclurites crassus" = Maclurites crassa, Maclurites subrotunda, "Maclurites manitobensis" = Maclurina manitobensis
Maclurites cuneata Whitfield 1878 snail
"Maclurites crassus" = Maclurites crassa Ulrich and Scofield 1897 snail
Maclurites subrotunda Whitfield 1878 snail
"Maclurites manitobensis" = Maclurina manitobensis Whiteaves 1890 snail |