Where: Northwest Territories, Canada (65.4° N, 138.3° W: paleocoordinates 14.5° N, 53.9° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Road River Formation, Middle Ordovician to Middle Ordovician (471.8 - 460.9 Ma)
• Probably Upper Ordovician.
• formation-level stratigraphic resolution
Environment/lithology: deep subtidal; black, gray shale and gray, argillaceous limestone
Size class: macrofossils
Collection methods: Collection also includes brachiopods, trilobite, and diplograptid graptolites.
Primary reference: B. S. Norford. 1963. Reconnaissance of the Ordovician and Silurian rocks of Northern Yukon Territory. Geological Survey of Canada Department of Mines and Technical Surveys, Paper 63-39 1-139 [S. Holland/T. Hanson/T. Hanson] more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 25528: authorized by Steven Holland, entered by Tori Hanson on 15.09.2002