SE James Ross Island - Member 1 [Rabot Mbr, Santa Marta Fm]: Late/Upper Campanian, Antarctica
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Malacostraca
- Decapoda
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Decapoda indet.
Latreille 1802
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Cephalopoda
- Ammonitida
- Baculitidae
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Baculites bailyi
Woods 1906
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| see common names | |||||||
Geography
| Country: | Antarctica |
| Coordinates: | 64.2° South, 57.8° West (view map) |
| Paleocoordinates: | 62.0° South, 68.5° West |
| Basis of coordinate: | stated in text |
| Geographic resolution: | local area |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Campanian | 10 m.y. bin: | Cretaceous 7 |
| Key time interval: | Late/Upper Campanian | ||
| Age range of interval: | 83.60000 - 72.10000 m.y. ago |
Stratigraphy
| Formation: | Santa Marta | Member: | Rabot | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Rabot Mbr of the Santa Marta Fm, which is locally overlain by the López de Bertodano Fm (Campanian-Maastrichtian). The Rabot Mbr of Crame et al. (1991) is raised to formation rank by Marenssi et al. (1992), but the former lithostratigraphic nomenclature is used by the enterer AGE: Late Campanian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From lower "member 1" of the Rabot Member. | |||||
Lithology and environment
| Primary lithology: | lithified sandstone |
| Secondary lithology: | lithified siltstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Alternating sandstone and siltstone, on the basis of Fig. 2 of Marenssi et al. (1992). LITHIFICATION: Lithified, on the basis of figured specimens. | |
| Environment: | transition zone/lower shoreface |
| Geology comments: ENVIRONMENT: Very shallow siliciclastic marine setting. | |
Taphonomy
| Modes of preservation: | body,cast,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: COLLECTOR: Multiple collectors, including the authors. REPOSITORY: Not stated, but presumably the Centro de Investigaciones en Recurso Geologicos (CIRGEO).. | |
| Taxonomic list comments:COVERAGE: COVERAGE: Exhaustive for ammonoidea and bivalvia. NOMENCLATURE: Not an authoritative publication, but with fairly modern nomenclature and species-resolution identifications where listed. | |
Metadata
| Database number: | 83389 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2008-08-19 13:43:54 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2008-08-19 13:43:54 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 27995. | S. A. Marenssi, J. M. Lirio, S. N. Santillana, D. R. Martinioni, and S. Palamarczuk. 1992. El Cretacio Superior del sudeste de la Isla James Ross, Antartida. Geologia de la Isla James Ross 77-88 [A. Hendy/A. Hendy] |