Unnamed Fmn., 120 m beneath unit 1, western Prince of Wales Island (Devonian of Canada)

Where: Nunavut, Canada (72.7° N, 99.0° W: paleocoordinates 3.0° S, 30.5° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Monograptus uniformis zone, Lochkovian (419.2 - 410.8 Ma)

• "...it appears that the fauna equates with the zone of Monograptus uniformis-Warburgella rugulosa-Icriodus woschmidti..."

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; shelly/skeletal limestone and dolomite

• "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 given lith. description and, more importantly, regional context

• "...about 25 m thick and consists mainly of crinoidal limestone that grades upwards into dolomite. Distributed throughout about a meter of lst is a fauna consisting of [list].."

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 14027: authorized by Michael Foote, entered by Michael Foote on 08.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805
Strophomenata
 Orthotetida - Schuchertellidae
Schuchertella sp. Girty 1904
genus name in quotes
 Strophomenida - Leptostrophiidae
Leptostrophia sp. Hall and Clarke 1892
 Strophomenida - Rafinesquinidae
Leptaena sp. Dalman 1828
sp.A
Leptaena sp. Dalman 1828
sp.B
 Strophomenida - Amphistrophiidae
? Mesodouvillina sp. Williams 1950
Rhynchonellata
 Spiriferida - Spiriferidae
Spirifer sp. Sowerby 1818
 Spiriferida - Delthyrididae
 Pentamerida - Parastrophinidae
Anastrophia magnifica Kozlowski 1929
 Pentamerida - Gypidulidae
Gypidula sp. Hall 1867
Gypidula sp. Hall 1867
sp.A
Gypidula sp. Hall 1867
sp.B
Gypidula sp. Hall 1867
sp.C
 Atrypida - Atrypidae
Spinatrypa sp. Stainbrook 1951
[entered as Spinotrypa sp.]
Atrypa sp. Dalman 1828
 Rhynchonellida - Trigonirhynchiidae
Ancillotoechia sp. Havlicek 1959
 Rhynchonellida - Rhynchonellidae
 Orthida - Schizophoriidae
Schizophoria sp. King 1850
Pteraspidomorpha
 Cyathaspidiformes - Cyathaspididae
Cyathaspididae indet. n. gen. Flower and Wayland-Smith 1952
two new genera
Conodonta
  -
Conodonta indet. Eichenberg 1930 conodont
 Conodontophorida -
Pedavis sp. n. sp.
Pedavis sp. n. sp. Klapper and Philip 1971 conodont
sp.A
 Panderodontida - Panderodontidae
Panderodus sp. Ethington 1959 conodont
 Ozarkodinida -
Ozarkodina sp. n. sp., "Ozarkodina remscheidensis" = Nicollidina remscheidensis
Ozarkodina sp. n. sp. Branson and Mehl 1933 conodont
"Ozarkodina remscheidensis" = Nicollidina remscheidensis Ziegler 1960 conodont
  - Strachanognathidae
Belodella sp. Ethington 1959 conodont