Baillie Hamilton Island (GSC C26940): Lochkovian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Cyrtoneritida
- Orthonychiidae
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Platyceras (Orthonychia) aff. dentalium
Hall 1862
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46 specimens | |||||||||
| recombined as Orthonychia dentalium | ||||||||||
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Strophomenata
- Strophomenida
- Strophonellidae
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Strophonella cf. plasi
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1 specimen | |||||||||
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Strophomenata
- Strophomenida
- Amphistrophiidae
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Mesodouvillina equicostata
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614 specimens | |||||||||
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Strophomenata
- Strophomenida
- Leptostrophiidae
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Barbaestrophia bieleri
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46 specimens | |||||||||
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Leptaena nassichucki
(Smith 1980)
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14 specimens | |||||||||
| misspelling Leptaena nassichuki | ||||||||||
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Strophomenata
- Orthotetida
- Chilidiopsidae
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Iridostrophia johnsoni
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91 specimens | |||||||||
| original and current combination Iridistrophia | ||||||||||
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Rhynchonellata
- Pentamerida
- Gypidulidae
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Gypidula pelagica
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1 specimen | |||||||||
| pyraforme | ||||||||||
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Rhynchonellata
- Spiriferinida
- Cyrtinidae
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Cyrtina sp.
Davidson 1858
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1 specimen | |||||||||
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Rhynchonellata
- Orthida
- Schizophoriidae
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Schizophoria fossula
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885 specimens | |||||||||
| ssp. fossula | ||||||||||
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Rhynchonellata
- Spiriferida
- Delthyrididae
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Acanthospirifer macdonaldi
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4 specimens | |||||||||
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Howellella sp.
Kozlowski 1946
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74 specimens | |||||||||
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Rhynchonellata
- Athyridida
- Anoplothecidae
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Coelospira exilicosta
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195 specimens | |||||||||
| orbita | ||||||||||
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Rhynchonellata
- Atrypida
- Atrypidae
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Atrypa nieczlawiensis
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16 specimens | |||||||||
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Rhynchonellata
- Atrypida
- Atrypinidae
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Arctispira canadensis
Smith 1980
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17 specimens | |||||||||
| recombined as Rhynchogilviella canadensis | ||||||||||
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Ancillotoechia gutta
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19 specimens | |||||||||
| ssp. rotunda | ||||||||||
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Rhynchonellata
- Rhynchonellida
- Hebetoechiidae
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Tadschikia crassiforma
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2 specimens | |||||||||
| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Northwest Territories |
| Coordinates: | 76.0° North, 94.6° West (view map) | ||
| Paleocoordinates: | 2.8° South, 25.7° West | ||
| Geographic resolution: | small collection |
Time
| Period: | Devonian | Epoch: | Early/Lower Devonian |
| Stage: | Lochkovian | 10 m.y. bin: | Devonian 1 |
| *Period: | Early/Lower Devonian | ||
| *International age/stage: | Early/Lower Lochkovian | ||
| Key time interval: | Lochkovian | ||
| Age range of interval: | 419.20000 - 410.80000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Unnamed formation that overlies the Cape Phillips Fm. | |||||
Lithology and environment
| Primary lithology: | lithified argillaceous lime mudstone |
| Secondary lithology: | packstone |
| Environment: | shallow subtidal indet. |
| Geology comments: Thin to medium bedded argillaceous lime mudstone to packestone. | |
Taphonomy
| Modes of preservation: | body,replaced with silica |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | GSC |
| Taxonomic list comments:List is gastropods and brachiopods. Fauna also present include "trilobites, pelecypods, auloproid corals, colonial corals, fish, rare to common crinoids, and orthocone cephalopods." | |
Metadata
| Database number: | 3749 | ||
| Authorizer: | J. Alroy | Enterer: | M. Sommers | Research group: | marine invertebrate |
| Created: | 1999-08-09 14:00:00 | Last modified: | 2001-08-16 13:10:32 |
| Access level: | the public | Released: | 2000-11-20 13:53:20 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 237. | D. M. Rohr and R. E. Smith. 1978. Lower Devonian Gastropoda from the Canadian Arctic Islands. Canadian Journal of Earth Sciences 15:1228-1241 [J. Alroy/M. Sommers/P. Wagner] |