MF-1, lower beds, 1.2 km east, 1 km south of Marble Hill (Ordovician of the United States)

Also known as Roadcuts, south side of Missouri Highway no. 34

Where: Bollinger County, Missouri (37.3° N, 90.0° W: paleocoordinates 25.2° S, 76.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Lower Member (Smithville Formation), Cassinian (482.3 - 470.0 Ma)

• N. American E Fauna, Reutterodus andinus zone, middle Blackhillsian

• member-level stratigraphic resolution

Environment/lithology: limestone

Size class: macrofossils

Preservation: replaced with silica

Reposited in the USNM

Collection methods: bulk, hydrochloric

Primary reference: M. F. Fix. 1975. The Paleontology and stratigraphy of the Smithville and Blackrock Formations of Southeastern Missouri. M.S. Thesis, Geology, Washington University 1-147 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 75519: authorized by Pete Wagner, entered by Pete Wagner on 15.10.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Murchisoniina - Lophospiridae
Donaldiella cicelia, Lophospira ? perangulata, Lophospira perangulata, Ectomaria aff. adventa
Donaldiella cicelia Billings 1865 snail
Lophospira ? perangulata Hall 1847 snail
Lophospira perangulata Hall 1847 snail
Ectomaria aff. adventa Butts 1926 snail
 Murchisoniina - Straparollinidae
Straparollina cassina
Straparollina cassina Whitfield 1886 snail
 Murchisoniina - Eotomariidae
Clathrospira indet., "Murchisonia (Turritoma) cf. acrea" = Turritoma acrea, "Turritoma aff. acrea" = Turritoma acrea
Clathrospira indet. Ulrich and Scofield 1897 snail
"Murchisonia (Turritoma) cf. acrea" = Turritoma acrea Billings 1865 snail
"Turritoma aff. acrea" = Turritoma acrea Billings 1865 snail
 Murchisoniina - Hormotomidae
Hormotoma sp., Hormotoma confusa, Hormotoma anna, Hormotoma artemesia
Hormotoma sp. Salter 1859 snail
Hormotoma confusa Whitfield 1889 snail
Hormotoma anna Billings 1859 snail
Hormotoma artemesia Billings 1865 snail
 Murchisoniina - Murchisoniidae
"Murchisonia (Hormotoma) indet." = Murchisonia
"Murchisonia (Hormotoma) indet." = Murchisonia d'Archiac and de Verneuil 1841 snail
 Murchisoniina - Subulitidae
Fusispira aff. obesus
Fusispira aff. obesus Whitfield 1886 snail
 Euomphalina - Helicotomidae
Helicotomidae sp., "? Lophonema (Lophonema) indet." = Lophonema, Lophonema aff. taneyensis, Lophonema aff. peccatonica, "Polhemia indet." = Lophonema, "Polhemia "n. sp. #1"" = Lophonema, Lophonema aff. circumlirata
Helicotomidae sp. Wenz 1938 snail
"? Lophonema (Lophonema) indet." = Lophonema Purdue and Miser 1916 snail
Lophonema aff. taneyensis Cullison 1944 snail
Lophonema aff. peccatonica Sardeson 1896 snail
"Polhemia indet." = Lophonema Purdue and Miser 1916 snail
includes 2 juveniles
"Polhemia "n. sp. #1"" = Lophonema Purdue and Miser 1916 snail
Lophonema aff. circumlirata Whitfield 1886 snail
 Euomphalina - Raphistomatidae
Ceratopea aff. depressa, Ceratopea unguis
Ceratopea aff. depressa Butts 1926 snail
Ceratopea unguis Yochelson and Bridge 1957 snail
3 shell, 33 opercula
 Euomphalina - Macluritidae
"Maclurites smithvillensis" = Teiichispira ponderosa
"Maclurites smithvillensis" = Teiichispira ponderosa Billings 1865 snail
4 shell, 2 opercula
Rostroconchia
 Conocardiida - Eopteriidae
Eopteria cf. richardsoni
Tergomya
 Tryblidiida - Archaeophialidae
? Macroscenella "n. sp."
 Kiringellida -
? Hypseloconus "n. sp."
Strophomenata
 Billingsellida - Polytoechiidae
Polytoechia sp.
Rhynchonellata
 Orthida - Finkelnburgiidae
Diparelasma aff. extensum
Trilobita
 Proetida - Bathyuridae
"? Goniotelina "n. sp."" = Acidiphorus, Bolbocephalus aff. stclairi
"? Goniotelina "n. sp."" = Acidiphorus Raymond 1925 trilobite
completely enrolled
Bolbocephalus aff. stclairi Cullison 1944 trilobite
Bolbocephalus aff. st.clairi; 1 cranidium, 1 pygidium
Ostracoda
 Leperditicopida - Isochilinidae
Ceratoleperditia "n. sp."
Ceratoleperditia "n. sp." Harris 1960 ostracod
 Leperditicopida - Leperditiidae
? Eoleperditia "sp. A", ? Eoleperditia "sp. B"
? Eoleperditia "sp. A" Swartz 1949 ostracod
? Eoleperditia "sp. B" Swartz 1949 ostracod