GSC C22185, Baillie-Hamilton Island: Sheinwoodian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata - Strophomenida - Amphistrophiidae
Amphistrophia sp. Hall and Clarke 1892
Strophomenata - Strophomenida - Rafinesquinidae
Strophomenata - Strophomenida - Leptaenoideidae
Strophomenata - Strophomenida - Sowerbyellidae
Strophomenata - Strophomenida - Aegiromenidae
Aegiria grayi (Davidson 1849)
Strophomenata - Orthotetida - Triplesiidae
Strophomenata - Orthotetida - Chilidiopsidae
Morinorhynchus crispus (Lindström 1861)
Rhynchonellata - Orthida - Hesperorthidae
Rhynchonellata - Orthida - Wangyuiidae
Rhynchonellata - Orthida - Dalmanellidae
Resserella canalis (Sowerby 1839)
Rhynchonellata - Orthida - Rhipidomellidae
Rhynchonellata - Orthida - Dicoelosiidae
Rhynchonellata - Protorthida - Skenidiidae
Skenidioides operosa Johnson et al. 1976
Rhynchonellata - Spiriferida - Adolfiidae
unclassified
Rhynchonellata - Rhynchonellida - Rhynchotrematidae
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Rhynchonellata - Pentamerida - Gypidulidae
Caryogyps grayi Zhang 1989
Rhynchonellata - Pentamerida - Clorindidae
Clorinda sp. Barrande 1879
Rhynchonellata - Pentamerida - Pentameridae
? Lissocoelina sp. Schuchert and Cooper 1931
? Rhipidium sp. Schuchert and Cooper 1931
Rhynchonellata - Pentamerida - Subrianidae
Rhynchonellata - Atrypida - Lissatrypidae
Rhynchonellata - Atrypida - Atrypidae
Rhynchonellata - Atrypida - Atrypinidae
Form 1
Rhynchonellata - Atrypida - Punctatrypidae
Rhynchonellata - Athyridida - Meristidae
Merista sp. Suess 1851
Rhynchonellata - Athyridida - Nucleospiridae
see common names

Geography
Country:Canada State/province:Northwest Territories
Coordinates: 75.8° North, 94.5° West (view map)
Paleocoordinates:4.0° North, 83.4° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Silurian Epoch: Wenlock
Stage: Sheinwoodian 10 m.y. bin: Silurian 2
Key time interval: Sheinwoodian Zone:  Monograptus riccartonensis
Age range of interval: 432.9 - 430.6 m.y. ago
Stratigraphy
Formation:Cape Phillips
Stratigraphic resolution:formation
Stratigraphy comments: According to author, material is from between the murchisoni and lundgreni zones. This would make it Sheinwoodian, although author simply refers to it as Wenlockian.
Lithology and environment
Primary lithology:shelly/skeletal "limestone"
Secondary lithology: calcareous "shale"
Includes fossils?Y
Lithology description: "..Formation consists of shale and thin bedded, laminated siltstone and limestone...Section [with faunas] broadly divisible into two lithofacies: a lower part about 25 m thick, consists mainly of medium grey, thin bedded argillaceous Lst that is variably dolomitic...and an upper part, about 65 m thick, consisting mainly of very dark grey, very thin bedded argillaceous Lst that is markedly bituminous and commonly planar laminated...These beds appear to represent sediment gravity flows that were derived from platform carbonates...some 10 km to the east. The brachiopods and conodonts were obtained from the bioclastic beds and are therefore presumed to be allochthonous."
Environment:slope Tectonic setting:passive margin
Geology comments: "...Formation...represents the slope-to-basinal facies equivalent of coeval platform carbonates that occur to S and E..."
SEP environmental call based on given info and regional context
Taphonomy
Modes of preservation:replaced with silica
Collection methods and comments
Collection excludes:some macrofossils
Reason for describing collection:taxonomic analysis
Museum repositories:GSC
Taxonomic list comments:List in Part I of monograph (PBDB ref. 7205) covers all the brachiopods, whereas the systematic treatment is spread out through three parts (refs. 7205-7207).
Metadata
Also known as:Brachiopods, Cape Phillips Formation,
Database number:26011
Authorizer:M. Foote Enterer:M. Foote
Modifier:P. Wagner Research group:marine invertebrate
Subset of collection #:26005
Created:2002-09-30 15:44:48 Last modified:2025-02-22 15:12:02
Access level:the public Released:2002-09-30 15:44:48
Creative Commons license:CC0
Reference information

Primary reference:
7205. N. Zhang. 1989. Wenlockian (Silurian) brachiopods of the Cape Phillips Formation, Baillie Hamilton Island, Arctic Canada: part I. Palaeontographica Abteilung A 206(1-3):49-97 [M. Foote/M. Foote/P. Wagner]