Where: Northwest Territories, Canada (61.6° N, 125.7° W: paleocoordinates 6.8° N, 58.0° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Whittaker Formation, Caradocian (460.9 - 449.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal; gray, cherty/siliceous dolomite

Size class: macrofossils

Collection methods: Collection also includes gastropods, bivalve mollusks, ramose ectoprocts, receptaculitids, crinoid plates, and streptelasmatid corals.

Primary reference: R. Ludvigsen. 1975. Ordovician formations and faunas, southern Mackenzie Mountains. Canadian Journal of Earth Sciences 12:663-697 [S. Holland/T. Hanson/T. Hanson] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 25322: authorized by Steven Holland, entered by Tori Hanson on 08.09.2002