GSC 89783, Liard River (Triassic of Canada)

Where: British Columbia, Canada (59.3° N, 125.3° W: paleocoordinates 30.4° N, 40.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: sutherlandi ammonoid zone, Liard Formation, Julian (235.0 - 232.0 Ma)

• subzone 2 (placed in Ladinian by Tozer, but sutherlandi zone spans Ladinian-Carnian boundary and Daxatina is marker for base of Carnian)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collected by Shell Oil Company in 1959; reposited in the GSC

Primary reference: E. T. Tozer. 1994. Canadian Triassic Ammonoid Faunas. Geological Survey of Canada Bulletin 467:1-663 [A. McGowan/A. McGowan/A. McGowan]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 141652: authorized by Matthew Clapham, entered by Matthew Clapham on 30.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ceratitida - Trachyceratidae
Daxatina megabrotheus n. sp. Tozer 1994 ceratite
Frankites sutherlandi McLearn 1947 ceratite