Beattie Ledge, Laird formation, GK-4-17: Ladinian, Canada
collected by D. W. Gibson 1987
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Chondrichthyes
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Suaviloquentia brevilingua
Johns 1997
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3 specimens | |||||||||
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Parvidiabolus obliquus
Johns 1997
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1 fragment | |||||||||
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Parvidiabolus acutus
Johns 1997
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1 specimen | |||||||||
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Coniunctio aequirugosa
Johns 1997
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1 specimen | |||||||||
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Chondrichthyes
- Hybodontiformes
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Polyacrodus contrarius
Johns 1997
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1 specimen | |||||||||
| recombined as Omanoselache contrarius | ||||||||||
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Chondrichthyes
- Synechodontiformes
- Palaeospinacidae
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Synechodus sp.
Woodward 1888
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1 specimen | |||||||||
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Chondrichthyes
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Lobaticorona floriditurris
Johns 1997
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1 specimen | |||||||||
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Ornatilabrilancea circacarina
Johns 1997
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6 specimens | |||||||||
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Complanicorona glabra
Johns 1997
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1 specimen | |||||||||
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Undulaticorona propensa
Johns 1997
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2 specimens | |||||||||
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Sacrisubcorona submedicarina
Johns 1997
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13 specimens | |||||||||
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Sacrisubcorona circabasis
Johns et al. 1997
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7 specimens | |||||||||
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Labascicorona alata
Johns 1997
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47 specimens | |||||||||
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Labascicorona longifossae
Johns 1997
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16 specimens | |||||||||
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Labascicorona nitidifastigia
Johns 1997
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3 specimens | |||||||||
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Labascicorona mediflexura
Johns 1997
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1 specimen | |||||||||
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Labascicorona trifastigia
Johns 1997
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1 specimen | |||||||||
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Proprigalea languidula
Johns 1997
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1 specimen | |||||||||
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Proprigalea mediglabra
Johns 1997
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1 specimen | |||||||||
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Gracilisuggestus uniapex
Johns 1997
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1 specimen | |||||||||
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Duplisuggestus duplirugosus
Johns 1997
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1 specimen | |||||||||
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unclassified
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Actinopterygii indet.
(Cope 1887)
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| teeth | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | British Columbia |
| Coordinates: | 56.2° North, 122.6° West (view map) | ||
| Paleocoordinates: | 24.1° North, 37.1° West |
Time
| Period: | Triassic | Epoch: | Middle Triassic |
| Stage: | Ladinian | 10 m.y. bin: | Triassic 2 |
| Key time interval: | Ladinian | Ammonoid zone: | ? Maclearnoceras maclearni |
| Age range of interval: | 242.00000 - 237.00000 m.y. ago |
Stratigraphy
| Formation: | Laird | ||||
| Stratigraphy comments: upper? Ladinian
icthyolith zone - Coniunctio aequirugosa |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | acetic | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | D. W. Gibson | Collection dates: | 1987 |
| Collection method comments: Repository: National Type Collection of Invertebrate and Plant Fossils at the Geological Survey of Canada
601 Booth St, Ottawa, Ontario, K1A0E8 | |||
Metadata
| Database number: | 150049 | ||
| Authorizer: | M. Clapham | Enterer: | P. Vazquez | Research group: | vertebrate |
| Created: | 2013-08-31 04:55:34 | Last modified: | 2013-08-30 13:55:34 |
| Access level: | the public | Released: | 2013-08-31 04:55:34 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 48012. | M. J. Johns, C. R. Barnes, and M. J. Orchard. 1997. Taxonomy and biostratigraphy of middle and late Triassic Elasmobranch Ichthyoliths from Northeastern British Columbia. Geological Survey of Canada Bulletin 502:1-238 [M. Clapham/P. Vazquez/P. Wagner] |