USGS M1832, Maple Island [Lower Sandstone Mbr, Haida Fm]: Albian, Canada
collected by Jones 1963
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Ammonitida
- Tetragonitidae
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Anagaudryceras filicinctum
(Whiteaves 1876)
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Cephalopoda
- Ammonitida
- Desmoceratidae
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Brewericeras hulenense
(Anderson 1938)
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| see common names | |||||||
Geography
| Country: | Canada | State/province: | British Columbia |
| Coordinates: | 53.3° North, 132.0° West (view map) | ||
| Paleocoordinates: | 22.9° North, 110.8° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| Stage: | Albian | 10 m.y. bin: | Cretaceous 4 |
| Key time interval: | Albian | ||
| Age range of interval: | 113 - 100.5 m.y. ago |
Stratigraphy
| Formation: | Haida | ||||
| Local section: | Maple Island | Local bed: | 133 m | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the lower sandstone member of the Haida Fm, which rests unconformably on massive agglomerate of the Jurassic Yakoun Fm, and is overlain by the shale member, which passes up into the Honna Fm. AGE: Albian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From 80-186 m above base of local section. | |||||
Lithology and environment
| Primary lithology: | very coarse lithified conglomeratic sandstone |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Sandstone, gritty sandstone, and lenses of conglomerates. LITHIFICATION: Lithified, on the basis of facies description and figured specimens. | |
| Environment: | coastal indet. |
| Geology comments: ENVIRONMENT: not stated in text, but apparently shallow marine siliciclastic. | |
Taphonomy
| Modes of preservation: | mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils | ||
| Collection methods: | field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | USNM | ||
| Collectors: | Jones | Collection dates: | 1963 |
| Collection method comments: COLLECTOR: D.L. Jones, 1963. REPOSITORY: USGS, presumably now at USNM. | |||
| Taxonomic list comments:COVERAGE: Exhaustive for ammonoids, but other groups not listed. NOMENCLATURE: Authoritative publication with slightly antiquated nomenclature, but with species resolution identifications. | |||
Metadata
| Also known as: | M1833, M1834 | ||
| Database number: | 87484 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2009-03-18 08:11:24 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2009-03-18 08:11:24 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 29456. | F. H. McLearn. 1972. Ammonoids of the lower Cretaceous sandstone member of the Haida Formation, Skidgate Inlet, Queen Charlotte Islands, western British Columbia. Geological Bulletin of Canada Bulletin 188:1-78 [A. Hendy/A. Hendy] |