Mekran beds - between Kanderi and Sari Dasht: Late Miocene, Pakistan
collected by Vredenburg
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Neogastropoda
- Turridae
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Gastropoda
- Neogastropoda
- Borsoniidae
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Surcula tuberculata
(Gray 1839)
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Gastropoda
- Neogastropoda
- Conidae
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Conus (Leptoconus) vimineus
(Reeve 1849)
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Conus (Leptoconus) amadis
(Martini 1773)
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Conus (Lithoconus) djarianensis
(Martin 1895)
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see common names |
Geography
Country: | Pakistan |
Coordinates: | 25.4° North, 63.3° East (view map) |
Paleocoordinates: | 23.9° North, 63.2° East (Wright 2013) |
Basis of coordinate: | stated in text |
Geographic resolution: | outcrop |
Time
Period: | Neogene | Epoch: | Miocene |
10 m.y. bin: | Cenozoic 6 | ||
Key time interval: | Late Miocene | ||
Age range of interval: | 11.63 - 5.333 m.y. ago |
Stratigraphy
Formation: | Mekran | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: STRATIGRAPHIC RELATIONS: Overlies the Gaj beds. AGE: Somewhat unclear. Younger than Early Miocene Gaj beds (Aquitanian-Burdigalian), and younger than the Gwadar beds (Pliocene), so probably ranging from Middle to Late Miocene in age. Age will be amended following consideration of taxonomic similarities with Indonesian faunas. STRATIGRAPHIC POSITION: Unknown position within Mekran beds. |
Lithology and environment
Primary lithology: | poorly lithified "siliciclastic" |
Includes fossils? | Y |
Lithology description: SPECIFIC LITHOLOGY: Unknown, but presumably siliciclastic. LITHIFICATION: Poorly-lithified, based on figured specimens. | |
Environment: | coastal indet. |
Geology comments: ENVIRONMENT: Not stated in text, but presumably shallow shelf siliciclastic. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | surface (in situ),field collection |
Reason for describing collection: | taxonomic analysis |
Collectors: | Vredenburg |
Collection method comments: COLLECTORS: Multiple collectors including W. Blanford, Wynne, Hira Lal, Ram Singh, and Noetling (staff of Geological Survey of India) during the early 1900's. REPOSITORY: Geological Survey of India, with voucher specimens possibly at the BMNH. | |
Taxonomic list comments:COVERAGE: Exhaustive for gastropoda, bivalvia, and scaphopoda. NOMENCLATURE: Antiquated, but from an authoritative publication, with use of species and subgenus resolution assignments. Nomenclature can be updated through reference to Harzhauser and Swarko publications. |
Metadata
Database number: | 77137 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2007-12-21 09:53:16 | Last modified: | 2025-02-22 15:12:02 |
Access level: | authorizer only | Released: | 2008-12-21 09:53:16 |
Creative Commons license: | CC0 |
Reference information
Primary reference:
26063. | 1925 | E. Vredenburg. 1925. Description of Mollusca from the post-Eocene Tertiary formation of north-western India: Cephalopoda, Opisthobranchiata, Siphonostomata. Memoirs of the Geological Survey of India 50(1):1-350 [A. Hendy/A. Hendy] |
Secondary references:
36478 | M. Harzhauser, M. Euter, W. E. Piller, B. Berning, A. Kroh and O. Mandic. 2009. Oligocene and Early Miocene gastropods from Kutch (NW India) document an early biogeographic switch from Western Tethys to Indo-Pacific. Palaeontologische Zeitschrift 83:333-372 [A. Hendy/A. Hendy] |