GSC 23457, Povoas Mountain (Triassic of Canada)

Where: Yukon, Canada (61.4° N, 135.1° W: paleocoordinates 28.9° N, 74.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: cordilleranus ammonoid zone, Lewes River Group, Sevatian (212.0 - 205.6 Ma)

• Formation D

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

Collected by E.T. Tozer in 1953; reposited in the GSC

Primary reference: E. T. Tozer. 1979. Latest Triassic ammonoid faunas and biochronology, western Canada. Current Research, Part B. Geological Survey of Canada Paper 79-1B:127-135 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 137119: authorized by Matthew Clapham, entered by Matthew Clapham on 10.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ceratitida - Choristoceratidae
Rhabdoceras suessi Hauer 1860 ceratite
 Ceratitida - Haloritidae
Gnomohalorites yukonensis n. sp. Tozer 1979 ceratite
 Phylloceratida - Discophyllitidae
Rhacophyllites debilis Hauer 1846 ammonite