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, Kicking Horse Shale Member (Burgess Shale Formation), Middle Cambrian (513.0 - 501.0 Ma)

• Stage 5, Polypleuraspis insignis Subzone of the Glossopleura Zone

• formation-level stratigraphic resolution

Environment/lithology: basinal (); lithified, calcareous siltstone and lithified, calcareous limestone

• Unit 1 contains thin limestones and sporadic small-scale slump structures and its base is clearly differentiated from the disconformable thicker, slightly wavybedded

•Takakkaw Tongue limestones below. Unit 2 occurs as a conformable, more homogeneous, platy, calcareous siltstone sequence and grades upwards into a finer grained fossiliferous unit 3. The topmost unit, unit 4, is 2 m thick and upwards becomes more calcareous with prominent thin, planar limestones heralding the change to the essentially thin to medium-bedded limestones of the overlying member.

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 188659: authorized by Lin Na, entered by Lin Na on 11.09.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Alalcomenaeus
  -
Alalcomenaeus sp. Simonetta 1970
Trilobita
 Corynexochida - Dolichometopidae