Mekran beds (Talar Stage) - 2 mi. WSW of Ban: Late/Upper Miocene, Pakistan
collected by Vredenburg
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Heterostropha
- Architectonicidae
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Solarium perspectivum
Linnaeus 1767
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Vredenburg 1928 | |||||||||
| recombined as Architectonica perspectiva | ||||||||||
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Gastropoda
- Turritellidae
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Turritella bantamensis
Martin 1905
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Vredenburg 1928 | |||||||||
| recombined as Turritella (Turritella) bantamensis | ||||||||||
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Turritella bandongensis
Martin 1879
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Vredenburg 1928 | |||||||||
| recombined as Turritella (Turritella) bandongensis | ||||||||||
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Turritella assimilis
Sowerby 1840
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Vredenburg 1928 | |||||||||
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Gastropoda
- Potamididae
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Terebralia miosulcata
Vredenburg 1928
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Vredenburg 1928 | |||||||||
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Terebralia sublignitarum
Vredenburg 1928
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Vredenburg 1928 | |||||||||
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Terebralia dimorpha
Vredenburg 1928
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Vredenburg 1928 | |||||||||
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Gastropoda
- Naticidae
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Natica globosa
(Philippi 1855)
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Vredenburg 1928 | |||||||||
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Gastropoda
- Cerithiopsidae
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Cerithiopsis mekranica
Vredenburg 1928
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Vredenburg 1928 | |||||||||
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Gastropoda
- Neogastropoda
- Melongenidae
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Melongena (Pugilina) ponderosa
(Martin 1895)
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Gastropoda
- Neogastropoda
- Conidae
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Conus (Leptoconus) amadis
(Martini 1773)
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Vredenburg 1928 | |||||||||
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Conus (Leptoconus) scalaris
(Martin 1879)
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Vredenburg 1928 | |||||||||
| original and current combination Conus scalaris | ||||||||||
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Bivalvia
- Arcida
- Arcidae
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Arca newtoni
Vredenburg 1928
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Vredenburg 1928 | |||||||||
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Arca clathrata
Reeve 1844
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Vredenburg 1928 | |||||||||
| SUBSPECIES: Arca clathrata burnesi | ||||||||||
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Arca inflata
Reeve 1844
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Vredenburg 1928 | |||||||||
| synonym of Scapharca broughtoni | ||||||||||
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Bivalvia
- Cardiida
- Cardiidae
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Cardium (Laevicardium) unicolor
(Sowerby 1840)
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Vredenburg 1928 | |||||||||
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Bivalvia
- Cardiida
- Veneridae
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Dosinia subpenicillata
Vredenburg 1928
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Vredenburg 1928 | |||||||||
| recombined as Dosina subpenicillata | ||||||||||
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Dosinia peralta
Vredenburg 1928
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Vredenburg 1928 | |||||||||
| recombined as Dosinia (Dosinia) peralta | ||||||||||
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Venus (Clementia) papyracea
(Gray 1825)
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Vredenburg 1928 | |||||||||
| recombined as Clementia (Clementia) papyracea | ||||||||||
| INCLUDES: Venus (Clementia) papyracea grandis | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Pakistan |
| Coordinates: | 25.5° North, 62.8° East (view map) |
| Paleocoordinates: | 23.6° North, 61.3° East |
| Basis of coordinate: | stated in text |
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| Key time interval: | Late/Upper Miocene | ||
| Age range of interval: | 11.63000 - 5.33300 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 unit. | |||||
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: | 77154 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2007-12-21 15:02:55 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | authorizer only | Released: | 2008-12-21 15:02:55 |
| Creative Commons license: | CC BY |
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:
| 26112 | E. Vredenburg. 1928. Description of Mollusca from the post-Eocene Tertiary formation of north-western India: Gastropoda (in part) and Lamellibranchiata. Memoirs of the Geological Survey of India 50(2):351-506 [A. Hendy/A. Hendy/A. Hendy] |