Lichidae, Cape Phillips Fm., Homerian part, ABR sections, Cornwallis Island (Silurian of Canada)

Where: Nunavut, Canada (75.4° N, 95.8° W: paleocoordinates 2.5° N, 31.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: ludensis zone, Cape Phillips Formation, Homerian (430.5 - 427.4 Ma)

• Age calls by author based on interfingering beds with rich graptolite fauna (see PBDB ref. 7197).

• formation-level stratigraphic resolution

Environment/lithology: slope; packstone and wackestone

• See lithology.

•SEP environmental call based on given info and regional context

• Cape Phillips Formation in general "comprised mainly of calcareous shales and argillaceous limestones." The trilobites are said occur in packstones and wackestones that are interpreted as debris flows (PBDB ref. 7197).

Size classes: macrofossils, mesofossils

Preservation: replaced with silica

Primary reference: J. M. Adrain. 2003. Validity and composition of the Silurian trilobite genera Borealarges and Dicranogmus, with new species from the Canadian Arctic. Canadian Journal of Earth Sciences 40:749-763 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 25996: authorized by Michael Foote, entered by Michael Foote on 30.09.2002, edited by Melanie Hopkins

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Lichida - Lichidae
Dicranogmus wynni n. sp., Borealarges reedi n. sp., Borealarges calei n. sp., Borealarges yulei n. sp.
Dicranogmus wynni n. sp. Adrain 2003 trilobite
Borealarges reedi n. sp. Adrain 1994 trilobite
Borealarges calei n. sp. Adrain 1994 trilobite
B. (s.l.)
Borealarges yulei n. sp. Adrain 2003 trilobite