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
Gastropoda
- Euomphalina
- Holopeidae
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Lytospira cf. gotlandicus
(Lindström 1884)
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Rohr et al. 1981 | 1 specimen | ||||||||
recombined as Pachystrophia gotlandicus | ||||||||||
Gastropoda
- Euomphalina
- Platyceratidae
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Platyceras (Platyceras) cornutum
(Hisinger 1837)
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Rohr et al. 1981 | 1 specimen | ||||||||
recombined as Platyostoma cornutum | ||||||||||
ssp. loricatum | ||||||||||
Platyceras (Platyostoma) boggsi
Rohr et al. 1981
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Rohr et al. 1981 | 9 specimens | ||||||||
recombined as Platyostoma boggsi | ||||||||||
Gastropoda
- Euomphalina
- Oriostomatidae
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Gyronema sp.
Ulrich and Scofield 1897
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Rohr et al. 1981 | 1 specimen | ||||||||
= ? Oriostoma sp.
Munier-Chalmas 1876
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Wagner 2023 | |||||||||
Gastropoda
- Murchisoniina
- Gosseletinidae
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Mourlonia sp.
de Koninck 1883
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Rohr et al. 1981 | 2 specimens | ||||||||
= Promourlonia aff. furcata
Longstaff 1924
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Wagner 2023 | |||||||||
Gastropoda
- Murchisoniina
- Murchisoniidae
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Loxoplocus (Donaldiella) sp.
(Cossmann 1903)
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Rohr et al. 1981 | 5 specimens | ||||||||
= Murchisonia aff. obtusangula
Lindström 1884
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Wagner 2023 | |||||||||
Tergomya
- Tryblidiida
- Tryblidiidae
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Tryblidium thorsteinssoni n. sp.
Boucot 1975
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Boucot 1975 | 1 specimen | ||||||||
Trilobita
- Corynexochida
- Illaenidae
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Illaenidae indet.
Hawle and Corda 1847
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Trilobita
- Lichida
- Lichidae
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Borealarges mikulicorum
(Perry and Chatterton 1977)
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Adrain and Ramskold 1996 | |||||||||
Trilobita
- Proetida
- Proetidae
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Proetus sp. sensu lato
Steininger 1831
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Proetus cf. granulatus sensu lato
Lindström 1885
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recombined as Gerastos granulatus | ||||||||||
Trilobita
- Proetida
- Otarionidae
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Otarion sp.
Zenker 1833
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Trilobita
- Odontopleurida
- Odontopleuridae
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? Odontopleuridae indet.
Burmeister 1843
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New genus odontopleurid? | ||||||||||
? Leonaspis sp.
Richter and Richter 1917
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Trilobita
- Phacopida
- Cheiruridae
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Sphaerexochus dimorphus n. sp.
Whittington and Evitt 1953
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Youngia informal sp. 1
Lindström 1885
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Youngia informal sp. 2
Lindström 1885
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Trilobita
- Phacopida
- Encrinuridae
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Encrinurus (Fragiscutum) sp.
Emmrich 1844
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Trilobita
- Phacopida
- Calymenidae
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Calymene sp.
Brongniart 1822
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Ostracoda
- Leperditicopida
- Leperditiidae
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Leperditia arctica
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"Leperditia" hisingeri
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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: | |||
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] |