Sekwi Anticline, MacKenzie Mountains, Sect. 2, 587 m below base (Devonian of Canada)

Where: Northwest Territories, Canada (63.3° N, 128.5° W: paleocoordinates 5.2° S, 40.8° W)

• small collection-level geographic resolution

When: Delorme Formation, Early/Lower Emsian (409.1 - 402.5 Ma)

• Conodont Polygnathus dehiscens lenzi found in these beds, conodont units 7 and 8 of Klapper et al. 1971.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, argillaceous limestone

• Limestone, argillaceous (from strat column).

Preservation: replaced with silica

Primary reference: D. G. Perry and B. D. E. Chatterton. 1976. Phacops and other trilobites from Emsian age beds of the Delorme Formation, MacKenzie Mountains, Northwest Territories. Canadian Journal of Earth Sciences 13:1466-1478 [J. Alroy/M. Sommers]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 3930: authorized by John Alroy, entered by Mike Sommers on 11.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• A graptolite.
Show authors, comments, and common names
Pterobranchia
 Graptoloidea - Monograptidae
Monograptus cf. yukonensis
Monograptus cf. yukonensis Lenz and Jackson 1963 graptolite
originally entered as "Monograptus cf. yukonensis"