Stewartville Formation Gastropoda and Monoplacophora, Minnesota: Edenian, Minnesota

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Eunema simile Ulrich and Scofield 1897
Tergomya - Scenellidae
Scenella compressa Ulrich and Scofield 1897
"Scenella" compressa
Tergomya - Cyrtonellida - Cyrtolitidae
Cyrtolites ornatus Conrad 1838
Gastropoda - Euomphalina - Ophiletidae
Ecculiomphalus subrotundus (Ulrich and Scofield 1897)
Gastropoda - Euomphalina - Platyceratidae
Strophostylus textilis (Miller 1897)
Gastropoda - Euomphalina - Macluritidae
Maclurites manitobensis (Whiteaves 1890)
Maclurites crassus (Ulrich and Scofield 1897)
Maclurites cuneata (Whitfield 1878)
Maclurites subrotunda (Whitfield 1878)
Gastropoda - Euomphalina - Raphistomatidae
Raphistoma sp. Hall 1847
Raphistoma peracutum Ulrich and Scofield 1897
Gastropoda - Euomphalina - Lesueurillidae
Ecculiomphalus owenanus (Meek and Worthen 1868)
Gastropoda - Euomphalina - Holopeidae
Holopea appressa Ulrich and Scofield 1897
Holopea supraplana Ulrich and Scofield 1897
Holopea pyrene Billings 1865
Holopea similis Ulrich and Scofield 1897
Holopea excelsa Ulrich and Scofield 1897
Holopea paludiniformis Hall 1847
[entered as Holopea paludinaeformis]
Raphistomina rugata Ulrich and Scofield 1897
Gastropoda - Euomphalina - Helicotomidae
Ophiletina angularis Ulrich and Scofield 1897
Ophiletina sublaxa Ulrich and Scofield 1897
Gastropoda - Bellerophontida - Sinuitidae
Sinuites cancellatus (Hall 1847)
Sinuites pervolutus (Ulrich and Scofield 1897)
Gastropoda - Bellerophontida - Temnodiscidae
Tropidodiscus subacutus (Ulrich and Scofield 1897)
Gastropoda - Bellerophontida - Bellerophontidae
Bellerophon clausus Ulrich and Scofield 1897
"Bellerophon" clausus
Bellerophon platystoma (Meek and Worthen 1868)
"Bellerophon" platystoma
Gastropoda - Bellerophontida - Plectonotidae
Tetranota obsoleta Ulrich and Scofield 1897
Tetranota sexcarinata Ulrich and Scofield 1897
Tetranota bidorsata (Hall 1847)
Gastropoda - Bellerophontida - Bucaniidae
Bucania sublata Ulrich and Scofield 1897
Bucania elliptica Ulrich and Scofield 1897
Phragmolites compressus Conrad 1838
Phragmolites dyeri (Hall 1872)
Kokenospira costalis (Ulrich and Scofield 1897)
Bucania lindleyi (Safford 1869)
Salpingostoma sculptile (Ulrich and Scofield 1897)
Gastropoda - Murchisoniina - Hormotomidae
Michelia oehlerti (Ulrich and Scofield 1897)
Michelia neglectus (Ulrich and Scofield 1897)
Lophospira angustina (Ulrich and Scofield 1897)
Hormotoma gracilis (Hall 1847)
Hormotoma angustata (Hall 1847)
[entered as Hormotoma angusta]
Gastropoda - Murchisoniina - Murchisoniidae
Hormotoma salteri Ulrich and Scofield 1897
Gastropoda - Murchisoniina - Loxonematidae
Hormotoma trentonensis Ulrich and Scofield 1897
Gastropoda - Murchisoniina - Lophospiridae
Lophospira perforata Ulrich and Scofield 1897
Hormotoma major (Hall 1852)
Lophospira fillmorensis Ulrich and Scofield 1897
Lophospira bicincta (Hall 1847)
    = Eunema centralis Ulrich and Scofield 1897
Wagner 2023
Lophospira elevata Ulrich and Scofield 1897
Gastropoda - Murchisoniina - Trochonematidae
Trochonema altum Ulrich and Scofield 1897
Trochonema fragile Ulrich and Scofield 1897
Trochonema subcrassum Ulrich and Scofield 1897
Trochonema unbilicatum (Hall 1847)
Eunema robbinsi (Ulrich and Scofield 1897)
Eunema salteri Ulrich and Scofield 1897
Gastropoda - Murchisoniina - Subulitidae
Subulites sp. Emmons 1842
Subulites pergracilis Ulrich and Scofield 1897
Subulites elongatus (Portlock 1843)
Hormotoma bellicincta (Hall 1847)
Fusispira subbrevis Ulrich and Scofield 1897
Fusispira inflata (Meek and Worthen 1870)
Fusispira nobilis Ulrich and Scofield 1897
Fusispira ventricosa Hall 1872
Fusispira planulata Ulrich and Scofield 1897
Fusispira subfusiformis (Hall 1847)
Fusispira angusta Ulrich and Scofield 1897
Fusispira subplana (Ulrich and Scofield 1897)
Fusispira intermedia Ulrich and Scofield 1897
Fusispira convexis (Ulrich and Scofield 1897)
Cyrtolites wykoffensis (Ulrich and Scofield 1897)
Cyrtospira wykoffensis Ulrich and Scofield 1897
Gastropoda - Murchisoniina - Eotomariidae
Liospira americana (Billings 1860)
Liospira vitruvia (Billings 1865)
Liospira angustata Ulrich and Scofield 1897
Liospira progue (Billings 1860)
Eotomaria sp. Ulrich and Scofield 1897
Bivalvia - Myalinida - Ambonychiidae
Ambonychiopsis sp. Isberg 1934
Cleionychia sp. Ulrich 1892
Bivalvia - Cyrtodontida - Cyrtodontidae
Matheria sp. Billings 1858
Cyrtodontula sp. Tomlin 1931
Vanuxemia sp. Billings 1858
Cyrtodonta sp. Billings 1858
Bivalvia - Pholadomyida
Sphenolium sp. Miller 1889
Bivalvia - Pholadomyida - Pholadomyidae
Rhytimya sp. Ulrich 1893
Bivalvia - Grammysiidae
Cuneamya sp. Hall and Whitfield 1875
Bivalvia - Modiomorphida - Modiomorphidae
Prolobella sp. Ulrich 1894
Modiolopsis sp. Hall 1847
Saffordia sp. Ulrich 1894
Orthodesma sp. Hall and Whitfield 1875
Modiolodon sp. Ulrich 1894
Endodesma sp. Ulrich 1894
Bivalvia - Megalodontida - Plethocardiidae
Plethocardia sp.
Bivalvia - Lyrodesmatidae
Lyrodesma sp. Conrad 1841
Bivalvia - Nuculanida - Cucullellidae
Nuculites sp. Conrad 1841
see common names

Geography
Country:United States State/province:Minnesota
Coordinates: 46.0° North, 94.0° West (view map)
Paleocoordinates:16.8° South, 62.3° West
Basis of coordinate:estimated from map
Geographic resolution:basin
Time
Period: Ordovician Epoch: Late Ordovician
Stage: Katian 10 m.y. bin: Ordovician 5
*Period:Middle Ordovician - Late/Upper Ordovician *Local age/stage:Edenian
Key time interval: Edenian
Age range of interval: 451.1 - 450.4 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Stewartville
Stratigraphic resolution:formation
Lithology and environment
Primary lithology:gray wackestone
Includes fossils?Y
Lithology description: Lithology from   F. M. Swain. 1987. Middle and Upper Ordovician Ostracoda of Minnesota and Iowa. Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35 :99-101. Edited by R. E. Sloan.
Geology comments: Environmental call by T. Hanson.
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection,survey of museum collection
Reason for describing collection:biostratigraphic analysis
Collection method comments: "[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)."
Metadata
Database number:23588
Authorizer:S. Holland, P. Wagner Enterer:T. Hanson, P. Wagner
Modifier:S. Holland Research group:marine invertebrate
Created:2002-07-17 10:45:37 Last modified:2004-10-22 11:59:23
Access level:the public Released:2002-07-17 10:45:37
Creative Commons license:CC BY
Reference information

Primary reference:
6737. 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]

Secondary references:

9042 P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner]