GSC C-22185, Baillie-Hamilton Is. (Silurian of Canada)

Also known as Trilobite-Ostracode Fauna, Cape Phillips Fm.

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)

• Parts of section yielding trilobites are from about 97.5 ft. to 245 ft. above base, spanning early Wenlockian Cyrtograptus canadenses through penultimate Wenlockian Monograptus testis zones.

• bed-level stratigraphic resolution

Environment/lithology: slope; shelly/skeletal limestone and calcareous shale

• SEP environmental call based on given info and regional context
• "alternating fine grained, argillaceous limestones and lesser amounts of interbedded calcareous shale and biogenic limestone" Column shows the last two named lithologies to be most relevant to these collections.

Reposited in the GSC

Primary reference: D. G. Perry and B. D. E. Chatterton. 1977. Silurian (Wenlockian) trilobites from Baillie-Hamilton Island, Canadian Arctic Archipelago. Canadian Journal of Earth Sciences 14:285-317 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 26005: authorized by Michael Foote, entered by Michael Foote on 30.09.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Corynexochida - Illaenidae
Illaenidae indet. Hawle and Corda 1847 trilobite
 Odontopleurida - Odontopleuridae
Dudleyaspis sp. Prantl and Pribyl 1949 trilobite
 Phacopida - Cheiruridae
Youngia sp. Lindström 1885 trilobite
Sphaerexochus dimorphus n. sp. Whittington and Evitt 1953 trilobite
 Phacopida - Calymenidae
Calymene sp. Brongniart 1822 trilobite
 Proetida - Proetidae
Proetus sp. Steininger 1831 trilobite
P. (s.l.)
 Lichida - Lichidae
Lichidae "indet. 3" Hawle and Corda 1847 trilobite
Indeterminate lichid sp. 3
Borealarges mikulicorum Perry and Chatterton 1977 trilobite
Dicranogmus skinneri n. sp. Perry and Chatterton 1977 trilobite
Ostracoda
 Palaeocopida -