Gate, Bed 13 [Giumal Sandstone]: Early Berriasian, India
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Ammonitida
- Olcostephanidae
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Spiticeras sp.
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Cephalopoda
- Ammonitida
- Neocomitidae
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Neocosmoceras cf. octagonus
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Kilianella sp.
Uhlig 1905
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Odontodiscoceras odontodiscus
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Neocomites sp.
Uhlig 1905
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unclassified
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Berroasella sp.
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| see common names | |||||||
Geography
| Country: | India |
| Coordinates: | 32.4° North, 78.1° East (view map) |
| Paleocoordinates: | 34.4° South, 46.7° East |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| Stage: | Berriasian | 10 m.y. bin: | Cretaceous 1 |
| Key time interval: | Early Berriasian | ||
| Age range of interval: | 145 - 142.7 m.y. ago |
Stratigraphy
| Formation: | Giumal Sandstone | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Giumal Sandstone, which overlies the Spiti Shale (Tithonian) AGE: Early Berrisian, on the basis of macrofossil biostratigraphy; Neocosmoceras association. STRATIGRAPHIC POSITION: From bed 13, lowermost Giumal Sandstone. | |||||
Lithology and environment
| Primary lithology: | lithified sandstone |
| Lithology description: SPECIFIC LITHOLOGY: Sandstone. LITHIFICATION: Lithified, based on figured specimens. | |
| Environment: | marine indet. |
| Geology comments: ENVIRONMENT: Siliciclastic marine environment. | |
Taphonomy
| Modes of preservation: | cast,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: COLLECTOR: Not stated, but presumably D. B. Pathak. REPOSITORY: Not stated, but possibly the Dept of Geology, Banaras Hindu University, India. | |
| Taxonomic list comments:COVERAGE: Probably not exhaustive, but comprehensive for ammonoidea. Other taxonomic groups known to be present include belemnoidea. NOMENCLATURE: Not an authoritative publication, but using modern nomenclature and species resolution identifications. | |
Metadata
| Database number: | 83610 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2008-08-23 16:42:46 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2008-08-23 16:42:46 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 28042. | D. B. Pathak. 2007. Jurassic/Cretaceous boundary in the Spiti Himilaya, India. Journal of the Paleontological Society of India 52(1):51-57 [A. Hendy/A. Hendy] |