MF-16. 2.2 km north and 2.8 km east of Laflin (Ordovician of the United States)

Also known as Roadcut and drainage ditch on a gravel road.

Where: Cape Girardeau 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 75556: 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
  -
Gastropoda indet. Cuvier 1795 snail
 Bellerophontida - Tropidodiscidae
"Tropidodiscus (Umbilicatus) macer" = Peruniscus macer
"Tropidodiscus (Umbilicatus) macer" = Peruniscus macer Billings 1865 snail
 Euomphalina - Raphistomatidae
Ceratopea indet. Ulrich 1911 snail
shells
Ceratopea buttsi Yochelson and Bridge 1957 snail
opercula
 Euomphalina - Helicotomidae
"Lophonema sp." = Lophonema Purdue and Miser 1916 snail
"Polhemia indet." = Lophonema Purdue and Miser 1916 snail
Lophonema aff. circumlirata Whitfield 1886 snail
Lophonema cf. taneyensis Cullison 1944 snail
 Murchisoniina - Eotomariidae
"Murchisonia (Turritoma) cf. acrea" = Turritoma acrea
"Murchisonia (Turritoma) cf. acrea" = Turritoma acrea Billings 1865 snail
 Murchisoniina - Lophospiridae
Lophospira indet. Whitfield 1886 snail
 Murchisoniina - Hormotomidae
Hormotoma indet. Salter 1859 snail
Ostracoda
 Leperditicopida - Isochilinidae
Ceratoleperditia "n. sp." Harris 1960 ostracod
 Leperditicopida - Leperditiidae
? Eoleperditia "sp. A" Swartz 1949 ostracod