Black Bear Ridge, Pardonet Formation, Unit 8, Sample 99BBR3 (Triassic of Canada)

Where: British Columbia, Canada (56.1° N, 123.1° W: paleocoordinates 33.1° N, 52.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Pardonet Formation, Lacian (221.5 - 215.6 Ma)

• Lower Norian; Sample 99BBR3 from Gibson&Edwards Unit 8, Zones: Quadrata (Conodont), Dawsoni (Ammonoid)

• bed-level stratigraphic resolution

Environment/lithology: deep-water; lithified, silty, carbonaceous limestone and lithified, dolomitic, calcareous siltstone

• The Pardonet Formation was deposited in a deep water setting, likely on the distal slope or abyssal plain, well offshore of the west Pangea coastline.
• The Pardonet Formation (140m) consists of carbonaceous silty limestone, calcareous and dolomitic siltstone and shale, and densely packed bioclastic grainstone beds.

Size classes: macrofossils, microfossils

Primary reference: M. J. Orchard, J. P. Zonneveld, M. J. Johns, C. A. McRoberts, M. R. Sandy, E. T. Tozer, and G. G. Carrelli. 2001. Fossil succession and sequence stratigraphy of the Upper Triassic of Black Bear Ridge, northeast British Columbia, a GSSP prospect for the Carnian-Norian boundary. Albertiana 25:10-22 [W. Kiessling/S. Nurnberg/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 47355: authorized by Wolfgang Kiessling, entered by Sabine Nürnberg on 23.02.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

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Conodontophorida
  -
Norigondolella navicula
Conodonta
 Ozarkodinida - Gondolellidae
Epigondolella quadrata
Gnathostomata
  -
Osteichthyes indet.
Osteichthyes indet. bony fish
Ganoid scale sp. 1
Osteichthyes
 Palaeonisciformes - Birgeriidae
Birgeria sp.
Birgeria sp. Stensiö 1919
Chondrichthyes
  -
Glabrisubcorona sp., Fragilicorona sp.
Glabrisubcorona sp. Johns 1997 elasmobranch
Fragilicorona sp. Johns 1997 elasmobranch
 Synechodontiformes - Palaeospinacidae
Synechodus incrementum
Synechodus incrementum Johns 1997 elasmobranch