Section 1, Sekwi Formation (Cambrian of Canada)

Where: Northern Territories, Canada (63.4° N, 129.4° W: paleocoordinates 0.6° S, 67.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Nevadella trilobite zone, Sekwi Formation, Cambrian (538.8 - 485.4 Ma)

• Series 2, Age 3

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified shale and lithified, calcareous siltstone

• Interbedded shale and calcisiltstone

Size class: macrofossils

Collection methods: mechanical,

Primary reference: I. W. Gapp, B. S. Lieberman, M. C. Pope and K. A. Dilliard. 2011. New olenelline trilobites from the Northwest Territories, Canada, and the phylogenetic placement of Judomia absita Fritz, 1973. Zootaxa 2918:15-28 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 228646: authorized by Melanie Hopkins, entered by Melanie Hopkins on 20.12.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

• occurrences in section are given as ranges, not individual beds
Show authors, comments, and common names
Trilobita
 Redlichiida -
Bradyfallotaspis nicolascagei, Bradyfallotaspis sekwiensis
Bradyfallotaspis nicolascagei Gapp et al. 2011 trilobite
range is 200-400 m in section
Bradyfallotaspis sekwiensis Gapp et al. 2011 trilobite
range is 175.8-288 m in section
 Redlichiida - Laudoniidae
Mummaspis delgadoae
Mummaspis delgadoae Gapp and Lieberman 2014 trilobite
found in float
 Redlichiida -
Nevadia ovalis, Judomia absita
Nevadia ovalis McMenamin 1987 trilobite
range is 199.5-300 m in section
Judomia absita Fritz 1973 trilobite
range is 196.1-378 m in section