Road between Sections 23 & 24, Springfield Township (Ordovician of the United States)

Where: Winneshiek County, Iowa (43.2° N, 91.8° W: paleocoordinates 19.1° S, 59.9° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Amplexograptus manitoulinensis graptolite zone, Elgin Member (Scales Shale Formation), Richmondian (449.6 - 445.5 Ma)

• Upper part of member

• group of beds-level stratigraphic resolution

Environment/lithology: limestone

• Limestone, occasional shale partings. Lithology from C. O. Leverson, A. J. Gerk, R. E. Sloan, & L. A. Bisagno. General section of the Middle and Late Ordovician strata of Northeastern Iowa, Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35, p.25-39. Edited by R. E. Sloan.

Size class: macrofossils

Reposited in the USNM

Primary reference: Y. Wang. 1949. Maquoketa Brachiopoda of Iowa. Geological Society of America Memoir 42:1-55 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 192094: authorized by Pete Wagner, entered by Pete Wagner on 08.03.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Orthida - Plaesiomyidae
Plaesiomys bellilamellosus n. sp.
Plaesiomys bellilamellosus n. sp. Wang 1949