Fusispira Beds, Wykoff (Ordovician of the United States)

Where: Minnesota (43.7° N, 92.3° W)

• Paleocoordinates: 9.6° S, 115.0° W (Wright 2013)

• coordinate estimated from map

• basin-level geographic resolution

When: Belodina confluens conodont zone, Fusispira Beds Member (Prosser Formation), Chatfieldian (453.8 - 451.0 Ma)

• Fusispira Beds.

• group of beds-level stratigraphic resolution

Environment/lithology: limestone

• Environmental call by T. Hanson.

Size class: macrofossils

Preservation: mold/impression

Reposited in the USNM

Primary reference: E. O. Ulrich and W. H. Scofield. 1897. The Lower Silurian Gastropoda of Minnesota. The Paleontology of Minnesota 39(2):813-1081 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 194137: authorized by Pete Wagner, entered by Pete Wagner on 14.06.2018

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Murchisoniina - Subulitidae
Subulites pergracilis, Cyrtospira wykoffensis
Subulites pergracilis Ulrich and Scofield 1897 snail
Cyrtospira wykoffensis Ulrich and Scofield 1897 snail
 Murchisoniina - Trochonematidae
"Trochonema (Eunema) robbinsi n. sp." = Globonema niota, "Trochonema (Eunema) simile n. sp." = Globonema simile
"Trochonema (Eunema) robbinsi n. sp." = Globonema niota Hall 1861 snail
"Trochonema (Eunema) simile n. sp." = Globonema simile Ulrich and Scofield 1897 snail
 Murchisoniina - Lophospiridae
"Lophospira fillmorensis" = Eunema concinnula, "Lophospira sumnerensis" = Paupospira sumnerensis, "Lophospira medialis" = Lophospira milleri
"Lophospira fillmorensis" = Eunema concinnula Ulrich and Scofield 1897 snail
"Lophospira sumnerensis" = Paupospira sumnerensis Safford 1869 snail
"Lophospira medialis" = Lophospira milleri Miller 1877 snail
 Bellerophontida - Bellerophontidae
"Bellerophon similis n. sp." = Sphenosphaera similis, "? Bellerophon platystoma" = Sphenosphaera platystoma
"Bellerophon similis n. sp." = Sphenosphaera similis Ulrich and Scofield 1897 snail
"? Bellerophon platystoma" = Sphenosphaera platystoma Meek and Worthen 1868 snail
 Euomphalina - Ophiletidae
"Eccyliomphalus subrotundus" = Lytospira subrotunda
"Eccyliomphalus subrotundus" = Lytospira subrotunda Ulrich and Scofield 1897 snail
 Euomphalina - Holopeidae
Holopea excelsa n. sp.
Holopea excelsa n. sp. Ulrich and Scofield 1897 snail
 Euomphalina - Lesueurillidae
Eccyliopterus owenanus
Eccyliopterus owenanus Meek and Worthen 1868 snail
 Euomphalina - Helicotomidae
Ophiletina sublaxa
Ophiletina sublaxa Ulrich and Scofield 1897 snail
 Euomphalina - Platyceratidae
Cyclonema varicosum
Cyclonema varicosum Hall 1861 snail
Tergomya
 Scenelloidea - Scenellidae
Scenella affinis
Scenella affinis Ulrich and Scofield 1897