Trilobite-Ostracode Fauna, Cape Phillips Fm. GSC C-22187, Baillie-Hamilton Is.: Gorstian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Tergomya - Tryblidiida - Tryblidiidae
Tryblidium thorsteinssoni n. sp. Boucot 1975
Boucot 1975 1 specimen
Gastropoda - Murchisoniina - Murchisoniidae
Loxoplocus (Donaldiella) sp. (Cossmann 1903)
Rohr et al. 1981 5 specimens
    = Murchisonia aff. obtusangula Lindström 1884
Wagner 2023
Gastropoda - Murchisoniina - Gosseletinidae
Mourlonia sp. de Koninck 1883
Rohr et al. 1981 2 specimens
    = Promourlonia aff. furcata Longstaff 1924
Wagner 2023
Gastropoda - Euomphalina - Oriostomatidae
Rohr et al. 1981 1 specimen
    = ? Oriostoma sp. Munier-Chalmas 1876
Wagner 2023
Gastropoda - Euomphalina - Holopeidae
Lytospira cf. gotlandicus (Lindström 1884)
Rohr et al. 1981 1 specimen
recombined as Pachystrophia gotlandicus
Gastropoda - Euomphalina - Platyceratidae
Platyceras (Platyceras) cornutum (Hisinger 1837)
Rohr et al. 1981 1 specimen
recombined as Platyostoma cornutum
ssp. loricatum
Platyceras (Platyostoma) boggsi Rohr et al. 1981
Rohr et al. 1981 9 specimens
recombined as Platyostoma boggsi
Ostracoda - Leperditicopida - Leperditiidae
Leperditia arctica
"Leperditia" hisingeri
Trilobita - Lichida - Lichidae
Borealarges mikulicorum (Perry and Chatterton 1977)
Adrain and Ramskold 1996
Trilobita - Corynexochida - Illaenidae
Illaenidae indet. Hawle and Corda 1847
Trilobita - Proetida - Proetidae
Proetus sp. sensu lato Steininger 1831
Proetus cf. granulatus sensu lato Lindström 1885
recombined as Gerastos granulatus
Trilobita - Proetida - Otarionidae
Otarion sp. Zenker 1833
Trilobita - Odontopleurida - Odontopleuridae
? Odontopleuridae indet. Burmeister 1843
New genus odontopleurid?
? Leonaspis sp. Richter and Richter 1917
Trilobita - Phacopida - Encrinuridae
Encrinurus (Fragiscutum) sp. Emmrich 1844
Trilobita - Phacopida - Cheiruridae
Youngia informal sp. 1 Lindström 1885
Youngia informal sp. 2 Lindström 1885
Sphaerexochus dimorphus n. sp. Whittington and Evitt 1953
Trilobita - Phacopida - Calymenidae
Calymene sp. Brongniart 1822
see common names

Geography
Country:Canada State/province:Nunavut
Coordinates: 75.8° North, 94.5° West (view map)
Paleocoordinates:1.9° North, 30.6° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Silurian Epoch:Ludlow
Stage:Gorstian 10 m.y. bin:Silurian 2
*Epoch:Wenlock
Key time interval:Gorstian
Age range of interval:427.40000 - 425.60000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Cape Phillips
Local section:C Local bed:222.5 ft
Local order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: Parts of section yielding trilobites are from about 97.5 ft. to 245 ft. above base, spanning early Wenlockian Cyrtograptus canadenses through penultimate Wenlockian Monograptus testis zones.
Lithology and environment
Primary lithology:shelly/skeletal "limestone"
Secondary lithology: calcareous "shale"
Lithology description: "alternating fine grained, argillaceous limestones and lesser amounts of interbedded calcareous shale and biogenic limestone" Column shows the last two named lithologies to be most relevant to these collections.
Environment:slope Tectonic setting:passive margin
Geology comments: SEP environmental call based on given info and regional context
Taphonomy
Collection methods and comments
Reason for describing collection:taxonomic analysis
Museum repositories:GSC
Metadata
Database number:26008
Authorizer:M. Foote, P. Wagner Enterer:M. Foote, P. Wagner
Modifier:P. Wagner Research group:marine invertebrate
Collections that are a subset of this one:26014
Created:2002-09-30 14:36:43 Last modified:2006-09-12 16:20:25
Access level:the public Released:2002-09-30 14:36:43
Creative Commons license:CC BY
Reference information

Primary reference:

7202. D. G. Perry and B. D. E. Chatterton. 1977. Silurian (Wenlockian) trilobites from Baillie-Hamilton Island, Canadian Arctic Archipelago. Canadian Journal of Earth Sciences 14:285-317 [M. Foote/M. Foote/M. Foote]

Secondary references:

7199 J. M. Adrain and L. Ramskold. 1996. The lichid trilobite Radiolichas in the Silurian of Arctic Canada and Gotland, Sweden. Geological Magazine 133:147-158 [M. Foote/M. Foote/M. Foote]
7203 A. J. Boucot. 1975. Tryblidium thorsteinssoni; first North American occurrence of the Silurian monoplacophoran genus. Bulletin of the Geological Survey of Canada 235:1-4 [M. Foote/M. Foote/M. Foote]
7204 D. M. Rohr, A.J. Boucot, and D.G. Perry. 1981. Silurian (Wenlockian) gastropods from Baillie-Hamilton Island, Canadian Arctic. Journal of Paleontology 55(2):331-339 [M. Foote/M. Foote/P. Wagner]
9042 P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner]