Cape Phillips Fmn. in Washington Point Section (Silurian of Canada)

Where: Nunavut, Canada (75.9° N, 94.6° W: paleocoordinates 0.1° N, 28.2° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Cape Phillips Formation, Pridoli (423.0 - 419.2 Ma)

• formation-level stratigraphic resolution

Environment/lithology: submarine fan; silty, calcareous shale and calcareous siltstone

• "Throughout much if not all of the Archipelago, the boundary between the Silurian and Devonian Systems, as presently defined, is transitional and not represented by a hiatus. Moreover, the S-D boundary is represented in contrasting facies: graptolitic, shelly, redbeds, and flysch deposits. The graptolitic rocks occur in outer parts of the Franklinian Geosyncline, and are exposed on Melville, Bathurst, Cornwallis, Baillie Hamilton, Devon and Ellesmere Islands. The shelly facies occurs in inner parts of the F.G. and on the adjoining Arctic Platform, and is exposed on Victoria, Stefansson, Cornwallis, Devon and Ellesmere Islands. The redbeds crop out in the environs of a prominent cratonic uplift (Boothia Uplift) on Cornwallis and Prince of Wales Islands. Outcrops of the flysch deposits are confined to northern Ellesmere Island."

•SEP environmental call based on section in reference

• [Lithology based on illustrated section.]

Collection methods: I have combined collecting levels 527, 178, and 158 m below top and 6 m above base of section.

Primary reference: J. W. Kerr, D. J. McLaren, and R. Thorsteinsson. 1977. Canadian Arctic Archipelago. In A. Martinsson (ed.), The Silurian-Devonian boundary (IUGS, Series A, Number 5) 281-288 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 14024: authorized by Michael Foote, entered by Michael Foote on 08.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Pteraspidomorpha
 Cyathaspidiformes - Cyathaspididae
Cyathaspididae indet. n. gen. n. sp.
Cyathaspididae indet. n. gen. n. sp. Flower and Wayland-Smith 1952
Graptolithina
 Bireclinata - Monograptidae
Monograptus transgrediens Pemer 1899 graptoloid