Also known as 85RB28

Where: Alaska (62.2° N, 154.9° W: paleocoordinates 62.2° N, 154.9° W)

When: Late/Upper Ordovician (458.4 - 443.8 Ma)

• This collection is from a limestone debris flow. The age of these beds is considered to be Ordovician (probably Ashgillian) based on the presence of the Cliefdenella, as well as the general aspect of the silicified brachiopods recovered there.

Environment/lithology: offshore; lithified rudstone and lithified grainstone

Size class: macrofossils

Preservation: replaced with silica

Collected by Blodgett in 1985

Primary reference: J. K. Rigby, R. B. Blodgett, and B. B. Britt. 2008. Ordovician sponges from west-central and east-central Alaska and western Yukon Territory, Canada. Bulletin of Geosciences 83(2):153-168 [A. Miller/S. Kolbe]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 100189: authorized by Arnold Miller, entered by Sarah Kolbe on 01.12.2010

Creative Commons license: CC BY (attribution)