Section A2, West of the Fossil Gully Fault (Cambrian of Canada)

Where: Brithish Columbia, Canada (51.4° N, 116.4° W: paleocoordinates 3.4° S, 79.5° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Glossopleura trilobite zone, Yoho River Limestone Member (Burgess Shale Formation), Middle Cambrian (513.0 - 501.0 Ma)

• Stage 5, Glossopleura and Bathyuriscus–Ptychoparella (Elrathina) zones

• formation-level stratigraphic resolution

Environment/lithology: basinal (); lithified limestone

• The member comprises two components. The lower unit 1 maintains its planar-bedded character and general thickness of about 3 m along the outcrop. It is capped by unit 2, which spectacularly varies in thickness and comprises irregular, more massive, pale limestones typically ploughed into the planar unit below.

Size class: macrofossils

Collection methods: bulk,

Primary reference: T. P. Fletcher and D. H. Collins. 2003. The Burgess Shale and associated Cambrian formations west of the Fossil Gully Fault Zone on Mount Stephen, British Columbia. Canadian Journal of Earth Sciences 40(12):1823-1838 [L. Na/L. Na/L. Na]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 188660: authorized by Lin Na, entered by Lin Na on 11.09.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Corynexochida - Dolichometopidae
Glossopleura sp. Poulsen 1927 trilobite
 Ptychopariida - Ptychopariidae
Ptychoparella cordillerae trilobite
Rominger 1887