Unnamed Fmn., units 1-4, western Prince of Wales Island: Lochkovian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Scolecodonta indet.
Heterostraca indet.
Cephalopoda
Cephalopoda indet. Cuvier 1797
Bivalvia
Pelecypoda indet. Goldfuss 1820
synonym of Bivalvia
unclassified
Brachiopoda indet. Cuvier 1805
Ostracoda
Ostracoda indet. Latreille 1802
Trilobita - Proetida - Proetidae
Warburgella rugulosa (Alth 1874)
recombined as Warburgella (Rugulites) rugulosa
Pterobranchia - Graptoloidea - Monograptidae
Monograptus uniformis (Pribyl 1940)
Conodonta
Conodonta indet.
Conodonta - Prioniodontida - Icriodontidae
Pedavis sp.A n. sp. Klapper and Philip 1971
Conodonta - Ozarkodinida
Ozarkodina remscheidensis Ziegler 1960
recombined as Nicollidina remscheidensis
Pteraspidomorpha - Pteraspidiformes - Pteraspididae
Pteraspididae indet. Claypole 1885
Pteraspidomorpha - Cyathaspididae
Cyathaspididae indet. (Kiaer 1932)
see common names

Geography
Country:Canada State/province:Nunavut County:Prince of Wales Island
Coordinates: 72.7° North, 99.0° West (view map)
Paleocoordinates:3.0° South, 30.5° West
Basis of coordinate:based on political unit
Geographic resolution:outcrop
Time
Period:Devonian Epoch:Early/Lower Devonian
Stage:Lochkovian 10 m.y. bin:Devonian 1
Key time interval:Lochkovian Zone: Monograptus uniformis
Age range of interval:419.20000 - 410.80000 m.y. ago
Stratigraphy
Stratigraphic resolution:formation
Stratigraphy comments: "...what appears to be fairly certainly established as the Monograptus uniformis-Warburgella rugulosa-Icriodus woschmidti Biozone."
Lithology and environment
Primary lithology:shelly/skeletal,gray,red or brown argillaceous,silty "limestone"
Secondary lithology:gray silty,calcareous mudstone
Includes fossils?Y
Includes fossils?Y
Lithology description: "[working down] 4. Limestone; argillaceous, medium grey to brownish, irregularly bedded, fine-grained, [containing Warburgella and narrow zone of M. uniformis 2.75 m above base]; 3. Limestone; quartzose, medium grey, medium bedded, fine-grained, in part bioclastic; interbedded with minor fine-grained calcareous quartz sandstone and calcareous siltstone [Warburgella, conodonts, brachs, bivalves, ostracodes, cephalopods, scolecodonts, heterostracans]; 2. Limestone; argillaceous, medium grey, medium bedded, resistant; 1. Mudstone; calcareous and variably silty; medium grey, thin bedded, soft weathering; Warburgella..."
Environment:shallow subtidal indet. Tectonic setting:passive margin
Geology comments: "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 info. and regional context
Taphonomy
Collection methods and comments
Collection excludes:some macrofossils
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:14026
Authorizer:M. Foote Enterer:M. Foote
Modifier:M. Foote Research group:marine invertebrate
Created:2002-05-08 11:46:38 Last modified:2006-09-15 15:13:14
Access level:the public Released:2002-05-08 11:46:38
Creative Commons license:CC BY
Reference information

Primary reference:
6181. 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]