Road River Formation, Snake River, Yukon Territory (Ordovician to of Canada)

Where: Yukon, Canada (65.3° N, 133.5° W: paleocoordinates 12.2° N, 53.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Road River Formation, Richmondian to Richmondian (449.6 - 443.7 Ma)

• formation-level stratigraphic resolution

Environment/lithology: shale and calcareous shale

• Environmental call by T. Hanson.
• From a 10-foot shale and calcareous shale band.

Size class: macrofossils

Primary reference: A. C. Lenz and M. Churkin, Jr. 1966. Upper Ordovician trilobites from Northern Yukon. Palaeontology 9(1):39-47 [S. Holland/T. Hanson/T. Hanson]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 25166: authorized by Steven Holland, entered by Tori Hanson on 31.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Trinucleida - Raphiophoridae
Ampyxina sp.
Ampyxina sp. Ullrich 1922 trilobite
 Trinucleida - Trinucleidae
Cryptolithoides sp.
Cryptolithoides sp. Whittington 1941 trilobite
 Asaphida - Remopleurididae
Robergia sp.
Robergia sp. Wiman 1905 trilobite