Where: Alaska (62.2° N, 155.0° W: paleocoordinates 16.1° N, 56.2° W)

When: Silurian (443.7 - 416.0 Ma)

Environment/lithology: lithified limestone

Size class: macrofossils

Collected by Gilbert in 1979

Primary reference: J. K. Rigby, M. H. Nitecki, C. M. Soja and R. B. Blodgett. 1994. Silurian aphrosalpingid sphinctozoans from Alaska and Russia. Acta Palaeontologica Polonica 39(4):341-391 [A. Miller/S. Kolbe] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 100304: authorized by Arnold Miller, entered by Sarah Kolbe on 07.12.2010