Brachiopods of the Lower Lochkovian of Royal Creek, Yukon: Lochkovian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Strophomenata
- Strophomenida
- Amphistrophiidae
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? Mesodouvillina cf. mirabilis
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Strophomenata
- Strophomenida
- Leptostrophiidae
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Leptostrophia cf. inequicostella
Johnson 1970
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Leptagonia sp.
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| sp. 2 | ||||||||||
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Strophomenata
- Orthotetida
- Areostrophiidae
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Drahanostrophia sp.
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Aesopomum varistriata
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Aesopomum regularis
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Rhynchonellata
- Pentamerida
- Parastrophinidae
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Anastrophia sp.
Hall 1867
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Rhynchonellata
- Pentamerida
- Gypidulidae
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Gypidula pelagica
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Rhynchonellata
- Spiriferinida
- Cyrtinidae
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Cyrtina spp.
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Rhynchonellata
- Orthida
- Dalmanellidae
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Tyersella jubar
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Isorthis sp.
Kozlowski 1929
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Protocortezorthis aff. fornicatimcurvata
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Resserella sp.
Bancroft 1928
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| sp. 2 | ||||||||||
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Rhynchonellata
- Orthida
- Rhipidomellidae
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Dalejina sp.
Havlicek 1953
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| sp. 2 | ||||||||||
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Rhynchonellata
- Orthida
- Dicoelosiidae
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Dicoelosia cf. nitida
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Rhynchonellata
- Orthida
- Draboviidae
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Talentella submurifer
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Rhynchonellata
- Orthida
- Schizophoriidae
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Schizophoria cf. paraprima
Johnson et al. 1973
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Rhynchonellata
- Spiriferida
- Ambocoeliidae
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Ambocoelia sp.
Hall 1860
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Rhynchonellata
- Spiriferida
- Xenomartiniidae
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? Altajella sp.
Kulkov 1962
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Rhynchonellata
- Spiriferida
- Delthyrididae
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Howellella aff. laeviplicata
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Rhynchonellata
- Athyridida
- Meristellidae
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Meristella sp.
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Rhynchonellata
- Athyridida
- Nucleospiridae
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Nucleospira laevigata
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Nucleospira sp.
Hall 1859
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Rhynchonellata
- Athyridida
- Anoplothecidae
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? Coelospira pusilla
(Hisinger 1837)
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Rhynchonellata
- Atrypida
- Atrypidae
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Desquamatia filistriata
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Spinatrypina sp.
Rzhonsnitskaya 1964
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| sp. 1 | ||||||||||
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Atrypa (Gotatrypa) sp.
Struve 1966
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Rhynchonellata
- Atrypida
- Lissatrypidae
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? Lissatrypa sp.
Twenhofel 1914
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Rhynchonellata
- Atrypida
- Atrypinidae
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Ogilviella rotundata
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| replaced by Rhynchogilviella | ||||||||||
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Spirigerina marginaliformis
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Rhynchonellata
- Atrypida
- Punctatrypidae
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Reticulatrypa norrisi
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? Reticulatrypa cf. granulifera
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Rhynchonellata
- Protorthida
- Skenidiidae
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Skenidioides variabilis
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Rhynchonellata
- Rhynchonellida
- Machaerariidae
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Machaeraria paraformosus
Lenz 1977
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| corrected as Machaeraria paraformosa | ||||||||||
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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Ancillotoechia infelix
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Ancillotoechia gutta
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| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Yukon |
| Coordinates: | 65.0° North, 135.0° West (view map) | ||
| Paleocoordinates: | 3.7° North, 43.6° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Devonian | Epoch: | Early/Lower Devonian |
| Stage: | Lochkovian | 10 m.y. bin: | Devonian 1 |
| *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
| Geological group: | Road River | ||||
| Stratigraphy comments: Lower Lochkovian strata of section 2, 140-190 m. | |||||
Lithology and environment
| Primary lithology: | "carbonate" | ||
| Secondary lithology: | "siliciclastic" | ||
| Lithology description: Elsewhere (Lenz 1982, PBDB ref. 7001), this sequence is described as consisting of mixed basinal carbonates and clastics. | |||
| Environment: | slope | Tectonic setting: | passive margin |
| Geology comments: "This community is everywhere typically found in deep water, basin-slope deposits. Debris flows are common, and gbraded beds may be present. A relatively deep and quiet water setting is proposed...Probably intergrades with the slightly shallower (BA 3) Atrypa-Gypidula community."
SEP environmental call based on given info. and regional context | |||
Taphonomy
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: "Bulk faunal composition." Brachiopods are assigned to five abundance categories. | |
Metadata
| Also known as: | Spirigerina-Ancillotoechia Community | ||
| Database number: | 24931 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Foote | Research group: | marine invertebrate |
| Created: | 2002-08-23 08:07:31 | Last modified: | 2006-09-15 15:14:05 |
| Access level: | the public | Released: | 2002-08-23 08:07:31 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 6991. | A. C. Lenz. 1999. Wenlockian to Pragian brachiopod communities of the northern Canadian Cordillera. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 784-792 [M. Foote/M. Foote/M. Foote] |