Dunleith Fm, Wyota Member Gastropoda and Monoplacophora, Illinois and Iowa: Shermanian, Illinois, Iowa
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Eunema simile
Ulrich and Scofield 1897
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Tergomya
- Cyrtonellida
- Cyrtolitidae
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Cyrtolites ornatus
Conrad 1838
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Tergomya
- Scenellidae
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Scenella compressa
Ulrich and Scofield 1897
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"Scenella" compressa | ||||||||||
Gastropoda
- Bellerophontida
- Sinuitidae
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Sinuites cancellatus
(Hall 1847)
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Sinuites pervolutus
(Ulrich and Scofield 1897)
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recombined as Sinuites pervoluta | ||||||||||
Gastropoda
- Bellerophontida
- Temnodiscidae
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Tropidodiscus subacutus
(Ulrich and Scofield 1897)
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recombined as Alaskadiscus subacutus | ||||||||||
Gastropoda
- Bellerophontida
- Bucaniidae
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Salpingostoma sculptile
(Ulrich and Scofield 1897)
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original and current combination Salpingostoma sculptilis | ||||||||||
Bucania lindleyi
(Safford 1869)
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recombined as Loxobucania lindsleyi | ||||||||||
Kokenospira costalis
(Ulrich and Scofield 1897)
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Phragmolites compressus
Conrad 1838
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Phragmolites dyeri
(Hall 1872)
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Bucania elliptica
Ulrich and Scofield 1897
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Bucania sublata
Ulrich and Scofield 1897
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Gastropoda
- Bellerophontida
- Bellerophontidae
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Bellerophon platystoma
(Meek and Worthen 1868)
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recombined as Sphenosphaera platystoma | ||||||||||
"Bellerophon" platystoma | ||||||||||
Bellerophon clausus
Ulrich and Scofield 1897
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replaced by Sphenosphaera rogersensis | ||||||||||
"Bellerophon" clausus | ||||||||||
Gastropoda
- Bellerophontida
- Plectonotidae
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Tetranota obsoleta
Ulrich and Scofield 1897
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Tetranota sexcarinata
Ulrich and Scofield 1897
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Tetranota bidorsata
(Hall 1847)
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Gastropoda
- Murchisoniina
- Hormotomidae
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Hormotoma gracilis
(Hall 1847)
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Hormotoma angustata
(Hall 1847)
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recombined as Hormotoma gracilis angustatus | ||||||||||
Michelia neglectus
(Ulrich and Scofield 1897)
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recombined as Hormotoma neglecta | ||||||||||
Lophospira angustina
(Ulrich and Scofield 1897)
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recombined as Hormotoma minnesotensis | ||||||||||
Gastropoda
- Murchisoniina
- Murchisoniidae
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Hormotoma salteri
Ulrich and Scofield 1897
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recombined as Cyrtostropha salteri | ||||||||||
Gastropoda
- Murchisoniina
- Trochonematidae
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Trochonema unbilicatum
(Hall 1847)
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recombined as Trochonema umbilicata | ||||||||||
Trochonema fragile
Ulrich and Scofield 1897
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Trochonema altum
Ulrich and Scofield 1897
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Trochonema subcrassum
Ulrich and Scofield 1897
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Eunema salteri
Ulrich and Scofield 1897
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replaced by Globonema niota | ||||||||||
Eunema robbinsi
(Ulrich and Scofield 1897)
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synonym of Globonema niota | ||||||||||
Gastropoda
- Murchisoniina
- Lophospiridae
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Lophospira medialis
Ulrich and Scofield 1897
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= Paupospira burginensis
Ulrich and Scofield 1897
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Wagner 2023 | |||||||||
Lophospira sumnerensis
(Safford 1869)
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recombined as Paupospira sumnerensis | ||||||||||
Lophospira elevata
Ulrich and Scofield 1897
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recombined as Paupospira elevata | ||||||||||
Gyronema sp.
Ulrich and Scofield 1897
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Lophospira fillmorensis
Ulrich and Scofield 1897
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synonym of Eunema concinnula | ||||||||||
Lophospira bicincta
(Hall 1847)
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= Eunema centralis
Ulrich and Scofield 1897
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Wagner 2023 | |||||||||
Lophospira obliqua
Ulrich and Scofield 1897
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Lophospira perforata
Ulrich and Scofield 1897
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synonym of Lophospira perangulata | ||||||||||
Hormotoma major
(Hall 1852)
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recombined as Lophospira major | ||||||||||
Gastropoda
- Murchisoniina
- Loxonematidae
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Hormotoma trentonensis
Ulrich and Scofield 1897
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recombined as Omospira trentonensis | ||||||||||
Gastropoda
- Murchisoniina
- Eotomariidae
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Liospira angustina
(Ulrich and Scofield 1897)
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original and current combination Liospira angustata | ||||||||||
Liospira americana
(Billings 1860)
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Liospira progue
(Billings 1860)
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recombined as Liospira progne | ||||||||||
Liospira vitruvia
(Billings 1865)
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Eotomaria sp.
Ulrich and Scofield 1897
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Clathrospira conica
Ulrich and Scofield 1897
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Clathrospira subconica
(Hall 1847)
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Gastropoda
- Murchisoniina
- Subulitidae
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Cyrtolites wykoffensis
(Ulrich and Scofield 1897)
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original and current combination Cyrtospira wykoffensis | ||||||||||
Cyrtospira wykoffensis
Ulrich and Scofield 1897
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Fusispira convexis
(Ulrich and Scofield 1897)
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original and current combination Fusispira convexa | ||||||||||
Fusispira planulata
Ulrich and Scofield 1897
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Fusispira nobilis
Ulrich and Scofield 1897
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Fusispira subbrevis
Ulrich and Scofield 1897
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Fusispira ventricosa
Hall 1872
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Fusispira intermedia
Ulrich and Scofield 1897
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Fusispira subfusiformis
(Hall 1847)
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Fusispira inflata
(Meek and Worthen 1870)
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Fusispira angusta
Ulrich and Scofield 1897
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Fusispira subplana
(Ulrich and Scofield 1897)
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original and current combination Fusispira angusta subplana | ||||||||||
Subulites sp.
Emmons 1842
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Subulites pergracilis
Ulrich and Scofield 1897
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Subulites elongatus
(Portlock 1843)
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Hormotoma bellicincta
(Hall 1847)
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recombined as Eroicaspira bellicincta | ||||||||||
Gastropoda
- Euomphalina
- Macluritidae
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Maclurites crassus
(Ulrich and Scofield 1897)
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recombined as Maclurites crassa | ||||||||||
Gastropoda
- Euomphalina
- Platyceratidae
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Strophostylus textilis
(Miller 1897)
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corrected as Cyclonema textilis | ||||||||||
Gastropoda
- Euomphalina
- Raphistomatidae
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Raphistoma sp.
Hall 1847
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Raphistoma peracutum
Ulrich and Scofield 1897
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recombined as Scalites peracutum | ||||||||||
Gastropoda
- Euomphalina
- Helicotomidae
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Ophiletina angularis
Ulrich and Scofield 1897
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Gastropoda
- Euomphalina
- Holopeidae
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Holopea supraplana
Ulrich and Scofield 1897
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Holopea pyrene
Billings 1865
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Holopea paludiniformis
Hall 1847
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[entered as Holopea paludinaeformis] | ||||||||||
Holopea appressa
Ulrich and Scofield 1897
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Holopea similis
Ulrich and Scofield 1897
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Holopea excelsa
Ulrich and Scofield 1897
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Raphistomina rugata
Ulrich and Scofield 1897
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Bivalvia
- Nuculanida
- Cucullellidae
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Nuculites sp.
Conrad 1841
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Bivalvia
- Nuculida
- Praenuculidae
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Similodonta sp.
Soot-Ryen 1964
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Bivalvia
- Solemyida
- Ctenodontidae
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Ctenodonta sp.
Salter 1852
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Bivalvia
- Myalinida
- Ambonychiidae
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Ambonychiopsis sp.
Isberg 1934
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Cleionychia sp.
Ulrich 1892
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Bivalvia
- Cyrtodontida
- Cyrtodontidae
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Vanuxemia sp.
Billings 1858
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Matheria sp.
Billings 1858
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Cyrtodonta sp.
Billings 1858
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Cyrtodontula sp.
Tomlin 1931
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Bivalvia
- Grammysiidae
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Cuneamya sp.
Hall and Whitfield 1875
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Bivalvia
- Modiomorphida
- Modiomorphidae
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Modiolopsis sp.
Hall 1847
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Orthodesma sp.
Hall and Whitfield 1875
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Modiolodon sp.
Ulrich 1894
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Prolobella sp.
Ulrich 1894
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Endodesma sp.
Ulrich 1894
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synonym of Cymatonota | ||||||||||
Saffordia sp.
Ulrich 1894
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Bivalvia
- Megalodontida
- Plethocardiidae
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Plethocardia sp.
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Bivalvia
- Pholadomyida
- Pholadomyidae
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Rhytimya sp.
Ulrich 1893
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Bivalvia
- Pholadomyida
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Sphenolium sp.
Miller 1889
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Bivalvia
- Lyrodesmatidae
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Lyrodesma sp.
Conrad 1841
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see common names |
Geography
Country: | United States | State/province: | Illinois, Iowa |
Coordinates: | 42.0° North, 90.5° West (view map) | ||
Paleocoordinates: | 21.3° South, 63.6° West | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | basin |
Time
Period: | Ordovician | Epoch: | Late/Upper Ordovician |
10 m.y. bin: | Ordovician 4-5 | ||
*Period: | Middle Ordovician - Late/Upper Ordovician | *Local age/stage: | Shermanian |
Key time interval: | Shermanian | ||
Age range of interval: | 457.00000 - 449.80000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Lithology and environment
Primary lithology: | cherty/siliceous "limestone" |
Includes fossils? | Y |
Lithology description: Lithology from C. O. Leverson, A. J. Gerk, R. E. Sloan, & L. A. Bisagno. General section of the Middle and Late Ordovician strata of Northeastern Iowa, Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35, p.25-39. Edited by R. E. Sloan. | |
Environment: | carbonate indet. |
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: | 23670 | ||
Authorizer: | S. Holland, P. Wagner | Enterer: | T. Hanson, P. Wagner |
Modifier: | S. Holland | Research group: | marine invertebrate |
Created: | 2002-07-18 13:04:46 | Last modified: | 2004-10-22 12:02:25 |
Access level: | the public | Released: | 2002-07-18 13:04:46 |
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] |