Lichidae, Cape Phillips Fm., Sheinwoodian part, ABR sects., Cornwallis Island (Silurian of Canada)

Where: Nunavut, Canada (75.4° N, 95.8° W: paleocoordinates 3.5° N, 33.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Cape Phillips Formation, Sheinwoodian (433.4 - 430.5 Ma)

• Age calls by authors 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).

Preservation: replaced with silica

Primary reference: J. M. Adrain and L. Ramskold. 1996. The lichid trilobite Radiolichas in the Silurian of Arctic Canada and Gotland, Sweden. Geological Magazine 133:147-158 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 26000: authorized by Michael Foote, entered by Michael Foote on 30.09.2002, edited by Melanie Hopkins

Creative Commons license: CC BY (attribution)

Taxonomic list

 Lichida - Lichidae
? Radiolichas ? davedaviesi Adrain and Ramskold 1996 trilobite
Radiolichas raydaviesi Adrain and Ramskold 1996 trilobite
Borealarges morrisoni Adrain 1994 trilobite
Borealarges warholi n. sp. Adrain 2003 trilobite
Borealarges nicoae n. sp. Adrain 2003 trilobite
Borealarges mikulicorum Perry and Chatterton 1977 trilobite