Triassic, Peace River Area (Triassic to of Canada)

Where: Alberta, Canada (56.2° N, 117.3° W: paleocoordinates 24.9° N, 31.9° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Toad/Grayling Formation, Griesbachian to Griesbachian (252.2 - 242.0 Ma)

Environment/lithology: marine; shale

• Non-carbonate nature
• Non-carbonate nature. In the east a sandy development indicates influx from this direction; over the shelf and the geosynclinal area silty shales and shaly siltstones are the common lithologies, ranging in color from light grey to black, often being calcareous or dolomitic. The sediments are platy and thin-bedded, and bear a certain resemblance to Kupferschiever lithology. In the upper beds coarse clastics came from a western source.

Size class: microfossils

Collection methods: core, chemical, mechanical,

Primary reference: J. Jansonius. 1962. Palynology of Permian and Triassic sediments, Paece River Area, Western Canada. Palaeontographica Abteilung B 110:35-98 [C. Looy/W. Puijk/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 31478: authorized by Cindy Looy, entered by Wilma Puijk on 14.05.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

 Pinales - Podocarpaceae
Cycadopites sp. Wodehouse 1933
sp. R
Cycadopites cf. follicularis Wilson and Webster 1946
Klausipollenites staplinii
Klausipollenites staplinii n. sp. Jansonius 1962
 Life -
Micrhystridium breve n. sp. acritarcs
Micrhystridium triassicum n. sp. acritarcs
Micrhystridium stipulatum n. sp. acritarcs
 Gymnospermophyta -
 Peridiniales - Peridiniaceae
"Palaeoperidinium sp." = Astrocysta
"Palaeoperidinium sp." = Astrocysta Davey 1970
cf. Palaeoperidinium caulleryi
 Cupressales - Pinidae