near Fountain, Decorah Shale (Ordovician of the United States)

Where: Fillmore County, Minnesota (43.7° N, 92.1° W: paleocoordinates 19.3° S, 63.2° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Decorah Shale Formation, Blackriveran (460.9 - 449.5 Ma)

• "Black River (Decorah) Shales", in Bassler (1911)

• formation-level stratigraphic resolution

Environment/lithology: coastal; limestone

Size classes: macrofossils, mesofossils

Primary reference: R. S. Bassler. 1911. The early Paleozoic Bryozoa of the Baltic Provinces. Bulletin of the United States National Museum 77:1-375 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 167610: authorized by Björn Kröger, entered by Björn Kröger on 26.03.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Stenolaemata
 Trepostomata - Monticuliporidae
Homotrypella cribrosa Bassler 1911