St. Paul, Nematopora Beds (Ordovician of the United States)

Where: Minnesota (45.0° N, 93.1° W: paleocoordinates 17.9° S, 62.7° W)

• coordinate estimated from map

When: Prosser Formation, Shermanian (460.9 - 449.5 Ma)

• "Nematopora Bed of Trenton Limestone", in Bassler (1911)

Environment/lithology: marine; 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 167576: authorized by Björn Kröger, entered by Björn Kröger on 24.03.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

 Cryptostomata - Arthrostylidae
Arthroclema armatum Ulrich 1890