Zone 5 [Upper Bhuban Fm]: Middle Miocene, India
collected by Tiwari
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Timecela cf. subspadicea
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R category | ||||||
Gastropoda
- Neogastropoda
- Conidae
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Conus (Lithoconus) ieditus
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F category | ||||||
Gastropoda
- Neogastropoda
- Muricidae
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Murex sp.
Linnaeus 1758
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R category | ||||||
Murex macgillivrayi
Dohrn 1862
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R category | ||||||
Gastropoda
- Ficidae
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Ficus conditus
(Brongniart 1823)
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R category | ||||||
recombined as Ficus condita | |||||||
Gastropoda
- Naticidae
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Sinum protoneritodeum
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R category | ||||||
Bivalvia
- Arcida
- Arcidae
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Anadara (Tegillaria) nodifera
(Martens 1860)
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R category | ||||||
Anadara garoensis
Mukerjee 1939
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F category | ||||||
Anadara daviesi
Mukerjee 1939
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F category | ||||||
Arca informal sp. 1
Linnaeus 1758
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R category | ||||||
Arca informal sp. 2
Linnaeus 1758
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R category | ||||||
Bivalvia
- Pectinida
- Pectinidae
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Chlamys cf. jamviensis
|
R category | ||||||
Chlamys (Chlamys) senatoria
(Gmelin 1791)
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F category | ||||||
recombined as Mimachlamys senatoria | |||||||
Pecten sp.
Müller 1776
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R category | ||||||
Bivalvia
- Ostreida
- Pinnidae
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Pinna (Pinna) informal sp. 2
Linnaeus 1758
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F category | ||||||
Bivalvia
- Pholadida
- Corbulidae
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Corbula mekranica
Vredenburg 1928
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R category | ||||||
Corbula tunicosulcata
Vredenburg 1928
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R category | ||||||
Corbula harpa
Archaic and Haime 1854
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R category | ||||||
recombined as Corbula (Bicorbula) harpa | |||||||
Bivalvia
- Cardiida
- Arcticidae
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Arctica islandica
(Linnaeus 1767)
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R category | ||||||
Bivalvia
- Cardiida
- Veneridae
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Pitar altoumbonata
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R category | ||||||
Meretrix sp.
Lamarck 1799
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A category | ||||||
Meretrix persica
Cox 1936
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F category | ||||||
Clementia (Clementia) papracea
|
F category | ||||||
Clementia (Clementia) protopapyracea
(Vredenburg 1928)
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R category | ||||||
Antigona granosa
(Sowerby 1840)
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R category | ||||||
Dosinia (Dosinia) peralta
(Vredenburg 1928)
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R category | ||||||
Bivalvia
- Cardiida
- Solecurtidae
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Solecurtus sp.
Blainville 1824
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R category | ||||||
Bivalvia
- Cardiida
- Tellinidae
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Apolymetis aizawlensis
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A category | ||||||
Tellina (Oudardia) sp.
()
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R category | ||||||
Tellina (Tellinella) pseudohilli
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R category | ||||||
Tellina (Tellinella) hilli
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R category | ||||||
Tellina (Phylloda) cf. foliacea
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R category | ||||||
Tellina (Eurytellina) pilgrimi
Cox 1936
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F category | ||||||
Bivalvia
- Carditida
- Astartidae
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Astarte (Bathiamena) informal sp. 1
Sowerby 1816
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R category | ||||||
Astarte (Bathiamena) informal sp. 2
Sowerby 1816
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F category | ||||||
Bivalvia
- Carditida
- Carditidae
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Cardita (Glans) quilonensis
Dey 1961
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R category | ||||||
Bivalvia
- Nuculida
- Nuculidae
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Nucula informal sp. 1
Lamarck 1799
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R category | ||||||
Malacostraca
- Decapoda
- Calappidae
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Calappa protopustulosa
Noetling 1901
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R category | ||||||
Malacostraca
- Decapoda
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Typilobus granulosus
Stoliczka 1871
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R category | ||||||
Echinoidea
- Spatangoida
- Schizasteridae
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Schizaster alveolatus
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F category | ||||||
Schizaster baluchistanensis
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R category | ||||||
Chondrichthyes
- Lamniformes
- Lamnidae
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Isurus spallanzanii
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F category | ||||||
Carcharodon carcharias
(Linnaeus 1758)
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F category | ||||||
see common names |
Geography
Country: | India |
Coordinates: | 22.9° North, 92.7° East (view map) |
Paleocoordinates: | 16.4° North, 93.2° East |
Basis of coordinate: | stated in text |
Geographic resolution: | local area |
Time
Period: | Neogene | Epoch: | Miocene |
10 m.y. bin: | Cenozoic 5 | ||
Key time interval: | Middle Miocene | ||
Age range of interval: | 15.97000 - 11.60800 m.y. ago |
Stratigraphy
Geological group: | Surma | Formation: | Upper Bhuban | ||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Upper Bhuban Fm of the Bhuban Subgroup, Surma Group (Early-Middle Miocene), which presumably overlies the Middle Bhuban Fm and overlain by sediments of the Boka Bil Subgroup (Ganju, 1975). THICKNESS: From beds of no more than 3 m thickness within sections of less than 12 m in thickness. AGE: Helvetian, Middle Miocene. STRATIGRAPHIC POSITION: From middle to near top of sections. |
Lithology and environment
Primary lithology: | lithified "shale" |
Includes fossils? | Y |
Lithology description: SPECIFIC LITHOLOGY: Silty shale. LITHIFICATION: Lithified, on the basis of figured specimens (casts and molds). | |
Environment: | shoreface |
Geology comments: ENVIRONMENT: Shallow marine, siliciclastic environment. |
Taphonomy
Modes of preservation: | body,cast,mold/impression |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | poor |
Collection methods and comments
Collection methods: | surface (in situ),field collection |
Reason for describing collection: | biostratigraphic analysis |
Museum repositories: | GSI |
Collectors: | Tiwari |
Collection method comments: COLLECTORS: R. P. Tiwari (unknown date). REPOSITORY: Geological Survey of India (GSI), Pachhunga University College (PUC) | |
Taxonomic list comments:COVERAGE: Exhaustive for gastropoda and bivalvia. NOMENCLATURE: Not an authoritative publication, but with fairly modern nomenclature, subgenus and species resolution assignments |
Metadata
Database number: | 78614 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2008-02-11 14:28:21 | Last modified: | 2013-11-25 13:37:23 |
Access level: | authorizer only | Released: | 2009-02-11 14:28:21 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
26436. | R. P. Tiwari and R. P. Kachhara. 2003. Molluscan biostratigraphy of the Tertiary sediments of Mizoram, India. Journal of the Paleontological Society of India 48:65-88 [A. Hendy/A. Hendy] |