Also known as Road cut on east side and draingae ditch on west side of county road U and drainage ditch northwest side of country road U, 5 km south of junction with Missouri Highway No. 34.
Where: Bollinger County, Missouri (37.3° N, 89.9° W: paleocoordinates 25.3° S, 76.4° 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 75523: authorized by Pete Wagner, entered by Pete Wagner on 15.10.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Rostroconchia | |
Eopteria cf. richardsoni Billings 1865 | |
Gastropoda | |
"Maclurites smithvillensis" = Teiichispira ponderosa, "Maclurites arnzeni" = Teiichispira odenvillensis
"Maclurites smithvillensis" = Teiichispira ponderosa Billings 1865 snail
"Maclurites arnzeni" = Teiichispira odenvillensis Butts 1926 snail | |
"? Lophonema indet." = Lophonema, "Polhemia indet." = Lophonema, Lophonema aff. circumlirata, "Polhemia aff. taneyensis" = Lophonema taneyensis
"? Lophonema indet." = Lophonema Purdue and Miser 1916 snail
"Polhemia indet." = Lophonema Purdue and Miser 1916 snail
Lophonema aff. circumlirata Whitfield 1886 snail
"Polhemia aff. taneyensis" = Lophonema taneyensis Cullison 1944 snail | |
Ceratopea aff. depressa Butts 1926 snail | |
"Clathrospira virguncula" = Clathrospira virguncula, "Clathrospira laflinensis n. sp." = Clathrospira virguncula
"Clathrospira virguncula" = Clathrospira virguncula Billings 1865 snail
"Clathrospira laflinensis n. sp." = Clathrospira virguncula Billings 1865 snail | |
Lophospira perangulata Hall 1847 snail | |
Fusispira aff. obesus Whitfield 1886 snail | |
Cephalopoda | |
Cephalopoda indet. Cuvier 1797 |