Where: Illinois (41.3° N, 88.1° W: paleocoordinates 22.3° S, 59.1° W)

• coordinate estimated from map

When: Richmond Formation, Richmondian (449.6 - 445.5 Ma)

Environment/lithology: marine; lithology not reported

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 167613: authorized by Björn Kröger, entered by Björn Kröger on 26.03.2015

Creative Commons license: CC BY (attribution)