Lichidae, Cape Phillips Fm., Sheinwoodian part, BH sects., Baillie-Hamilton Is. (Silurian of Canada)

Where: Northwest Territories, Canada (75.8° N, 94.5° W: paleocoordinates 3.5° N, 32.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

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

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 25997: authorized by Michael Foote, entered by Michael Foote on 30.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

 Lichida - Lichidae
? Acanthopyge sp. n. sp. Hawle and Corda 1847 trilobite
A? n. sp.
Radiolichas davedaviesi n. sp. Adrain and Ramskold 1996 trilobite
Radiolichas raydaviesi n. sp. Adrain and Ramskold 1996 trilobite
Borealarges tuckerae n. sp. Adrain 1994 trilobite
Borealarges morrisoni n. sp. Adrain 1994 trilobite
Borealarges mikulicorum Perry and Chatterton 1977 trilobite
Dicranogmus skinneri Perry and Chatterton 1977 trilobite