MF-8. 1.2 km north and 8.2 km east of Marble Hill (Ordovician of the United States)

Also known as Immediately west of Huskey School, Roadcut and drainage ditch, east side of gravel road apx. 0.2 km south of junction with Missouri Highway No. 34.

Where: Bollinger County, Missouri (37.3° N, 89.9° W: paleocoordinates 25.3° S, 76.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

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

• group of beds-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 75543: authorized by Pete Wagner, entered by Pete Wagner on 16.10.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
  -
Cephalopoda indet. Cuvier 1797
Rostroconchia
 Conocardiida - Eopteriidae
Gastropoda
 Euomphalina - Macluritidae
"Maclurites smithvillensis" = Teiichispira ponderosa
"Maclurites smithvillensis" = Teiichispira ponderosa Billings 1865 snail
 Euomphalina - Raphistomatidae
? Ceratopea indet. Ulrich 1911 snail
shell fragment
Ceratopea unguis Yochelson and Bridge 1957 snail
7 shells, 16 opercula
 Euomphalina - Helicotomidae
? Lophonema (? Lophonema) indet. Purdue and Miser 1916 snail
Lophonema cf. circumlirata Whitfield 1886 snail
"Polhemia aff. taneyensis" = Lophonema taneyensis Cullison 1944 snail
 Murchisoniina - Eotomariidae
Turritoma sp. Ulrich and Scofield 1897 snail
 Murchisoniina - Subulitidae
Fusispira cf. obesus Whitfield 1886 snail
 Murchisoniina - Lophospiridae
Ectomaria cf. adventa Butts 1926 snail
 Murchisoniina - Murchisoniidae
Murchisoniidae indet. Koken 1896 snail
 Murchisoniina - Hormotomidae
Hormotoma artemesia Billings 1865 snail
Hormotoma aff. artemesia Billings 1865 snail
Hormotoma cf. confusa Whitfield 1889 snail
Ostracoda
 Leperditicopida - Leperditiidae
? Eoleperditia "sp. A" Swartz 1949 ostracod
Trilobita
 Proetida - Bathyuridae
"Bolbocephalus aff. sainteclairi" = Bolbocephalus stclairi
"Bolbocephalus aff. sainteclairi" = Bolbocephalus stclairi Cullison 1944 trilobite
crandia; spelled B. sainte-clairi