Southwestern District of Mackenzie, Caribou Range (S-257) (Ordovician of Canada)

Where: Northwest Territories, Canada (61.2° N, 125.8° W: paleocoordinates 5.4° N, 60.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Sunblood Formation, Whiterockian (470.0 - 457.3 Ma)

Environment/lithology: shallow subtidal; limestone

Size classes: macrofossils, microfossils

Preservation: replaced with silica

Collected by Rolf Ludvigsen in 1971-1973; reposited in the GSC

Collection methods: chemical,

Primary reference: J. V. Tremblay and S. R. Westrop. 1991. Middle Ordovician (Whiterockian) trilobites from the Sunblood Formation, District of Mackenzie, Canada. Journal of Paleontology 65(5):801-824 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 102263: authorized by Melanie Hopkins, entered by Melanie Hopkins on 12.01.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Proetida - Bathyuridae
Bathyurus mackenziensis Tremblay and Westrop 1991 trilobite
 Phacopida - Pliomeridae
Pseudomera barrandei Billings 1865 trilobite