District of Mackenzie, Clear Creek Section, Units 18 & 19 (Devonian of Canada)

Where: Northwest Territories, Canada (65.4° N, 136.2° W: paleocoordinates 1.0° S, 37.9° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Devonian (419.2 - 358.9 Ma)

• No formation or group names given. Collection from 970-1000 feet above base.

Environment/lithology: shallow subtidal; black, gray, silty shale

• "Shale, silty in upper part of unit, black and dark grey, weathers grey . . . limy, black, weathers dark grey, fissile."

Size class: macrofossils

Collection methods: Collection also includes plants, goniatites, and gastropods. Broken into two smaller collections within reference.

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/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 25507: authorized by Steven Holland, entered by Tori Hanson on 14.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Lophophorata
 Tentaculitida - Tentaculitidae
Tentaculites sp.
Tentaculites sp. von Schlotheim 1820
Tentaculita
 Styliolinida - Styliolinidae
Styliolina sp.
Styliolina sp. Karpinsky 1884
Coleolus
  - Coleolidae
Coleolus sp.
Coleolus sp. Hall 1879