Vanuxemia beds, Beloit (Ordovician of the United States)

Where: Rock County, Wisconsin (42.5° N, 89.0° W: paleocoordinates 21.7° S, 62.4° W)

• outcrop-level geographic resolution

When: McGregor Formation (Platteville Group), Blackriveran (457.3 - 449.6 Ma)

• Vanuxemia bed

• formation-level stratigraphic resolution

Environment/lithology: limestone

Size class: macrofossils

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: taxonomic analysis

PaleoDB collection 154948: authorized by Pete Wagner, entered by Pete Wagner on 22.03.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• Only gastropods entered, as taxonomy is outdated.
Gastropoda
 Euomphalina - Macluritidae
"Maclurea bigsbyi" = Maclurina bigsbyi
"Maclurea bigsbyi" = Maclurina bigsbyi Hall 1861 snail
 Euomphalina - Lesueurillidae
"Eccyliopterus beloitensis" = Lesueurilla beloitensis
"Eccyliopterus beloitensis" = Lesueurilla beloitensis Ulrich and Scofield 1897 snail
 Euomphalina - Holopeidae
Holopea ampla Ulrich and Scofield 1897 snail
 Euomphalina - Helicotomidae
Helicotoma umbilicata Ulrich and Scofield 1897 snail
 Murchisoniina - Trochonematidae
Trochonema beloitense Whitfield 1878 snail
Trochonema ? beachi Whitfield 1878 snail
 Murchisoniina - Lophospiridae
"Gyronema duplicatum" = Gyronema semicarinatum, "Gyronema liratum n. sp." = Gyronema pulchellum
"Gyronema duplicatum" = Gyronema semicarinatum Salter 1859 snail
"Gyronema liratum n. sp." = Gyronema pulchellum Ulrich and Scofield 1897 snail
 Murchisoniina - Eotomariidae
"Eotomaria supracingulata" = Paraliospira supracingulata, "Pleurotomaria nasoni n. sp." = Paraliospira supracingulata, Clathrospira subconica
"Eotomaria supracingulata" = Paraliospira supracingulata Billings 1857 snail
"Pleurotomaria nasoni n. sp." = Paraliospira supracingulata Billings 1857 snail
Clathrospira subconica Hall 1847 snail
 Murchisoniina - Subulitidae
Subulites beloitensis n. sp. Ulrich and Scofield 1897 snail
Fusispira schucherti n. sp. Ulrich and Scofield 1897 snail
 Bellerophontida - Bucaniidae
Salpingostoma buelli Whitfield 1878 snail
 Bellerophontida - Sinuitidae
"Protowarthia rectangularis n. sp." = Sinuites rectangularis
"Protowarthia rectangularis n. sp." = Sinuites rectangularis Ulrich and Scofield 1897 snail
 Bellerophontida - Plectonotidae
Tetranota sexcarinata Ulrich and Scofield 1897 snail
Tetranota wisconsinensis Whitfield 1878 snail
Tergomya
 Archinacellida - Archinacellidae
Archinacella powersi n. gen. n. sp.
Archinacella powersi n. gen. n. sp. Ulrich and Scofield 1897