PBDB Collection

ABR TTD (talus collection), Cape Phillips Fm., Cornwallis Island, Northwest Terr (Silurian of Canada)

Where: Northwest Territories, Canada (75.0° N, 95.0° W: paleocoordinates 3.1° N, 33.3° W)

When: Cyrtograptus perneri - Monograptus opimus graptolite zone, Cape Phillips Formation, Sheinwoodian (433.4 - 430.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: slope; calcareous carbonate and shale

• "A series of carbonate debris flows [into basinal shales] derived from the platform margin is preserved in this area. It is from these gravity flow deposits that silicified fossils have been recovered."

Size class: macrofossils

Collection methods: This collection was made from talus.

Primary reference: J. M. Adrain and G. D. Edgecombe. 1997. Silurian (Wenlock) Calymenid trilobites from the Cape Phillips Formation, central Canadian Arctic. Journal of Paleontology 71(4):657-682 [J. Alroy/M. Sommers/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 682: authorized by John Alroy, entered by Mike Sommers on 23.02.1999, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• Calymenid trilobites only; article states there is a rich graptolite fauna as well.

Show authors, comments, and common names

Trilobita
Odontopleurida - Odontopleuridae	Ceratocephala "sp. 2"², Laethoprusia "n. sp."², Taemasaspis "n. sp. 1"², Kettneraspis wrightae², Edgecombeaspis johansonae², Radiaspis "sp. 1"² Ceratocephala "sp. 2"² Warder 1838 trilobite species 2 Laethoprusia "n. sp."² Ramskold 1991 trilobite new species Taemasaspis "n. sp. 1"² Chatterton 1971 trilobite new species 1 Kettneraspis wrightae² Adrain and Ramskold 1997 trilobite new species - originally entered as "Ketneraspis wrightae" Edgecombeaspis johansonae² trilobite new species Radiaspis "sp. 1"² Richter and Richter 1917 trilobite species 1
Phacopida - Calymenidae	Arcticalymene viciousi, Arcticalymene matlocki Arcticalymene viciousi trilobite Arcticalymene matlocki trilobite
Proetida - Proetidae	Winiskia longbottomae¹, Gerastos fosterae¹, Gerastos mellishae¹, Pseudogerastos forteyi¹, Westropia benfieldi n. gen. n. sp.¹ Winiskia longbottomae¹ trilobite Gerastos fosterae¹ Adrain 1997 trilobite Gerastos mellishae¹ Adrain 1997 trilobite Pseudogerastos forteyi¹ trilobite Westropia benfieldi n. gen. n. sp.¹ Adrain 1997 trilobite
Proetida - Tropidocoryphidae	Tropidocoryphinae "sp. 2"¹ Tropidocoryphinae "sp. 2"¹ Pribyl 1946 trilobite

¹Adrain 1997; ²Adrain and Ramskold 1997