Zone 5 [Upper Bhuban Fm]: Middle Miocene, India
collected by Tiwari

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Timecela cf. subspadicea
R category
Gastropoda - Neogastropoda - Conidae
Conus (Lithoconus) ieditus
F category
Gastropoda - Neogastropoda - Muricidae
Murex sp. Linnaeus 1758
R category
Murex macgillivrayi Dohrn 1862
R category
Gastropoda - Ficidae
Ficus conditus (Brongniart 1823)
R category
recombined as Ficus condita
Gastropoda - Naticidae
Sinum protoneritodeum
R category
Bivalvia - Arcida - Arcidae
Anadara (Tegillaria) nodifera (Martens 1860)
R category
Anadara garoensis Mukerjee 1939
F category
Anadara daviesi Mukerjee 1939
F category
Arca informal sp. 1 Linnaeus 1758
R category
Arca informal sp. 2 Linnaeus 1758
R category
Bivalvia - Pectinida - Pectinidae
Chlamys cf. jamviensis
R category
Chlamys (Chlamys) senatoria (Gmelin 1791)
F category
recombined as Mimachlamys senatoria
Pecten sp. Müller 1776
R category
Bivalvia - Ostreida - Pinnidae
Pinna (Pinna) informal sp. 2 Linnaeus 1758
F category
Bivalvia - Pholadida - Corbulidae
Corbula mekranica Vredenburg 1928
R category
Corbula tunicosulcata Vredenburg 1928
R category
Corbula harpa Archaic and Haime 1854
R category
recombined as Corbula (Bicorbula) harpa
Bivalvia - Cardiida - Arcticidae
Arctica islandica (Linnaeus 1767)
R category
Bivalvia - Cardiida - Veneridae
Pitar altoumbonata
R category
Meretrix sp. Lamarck 1799
A category
Meretrix persica Cox 1936
F category
Clementia (Clementia) papracea
F category
Clementia (Clementia) protopapyracea (Vredenburg 1928)
R category
Antigona granosa (Sowerby 1840)
R category
Dosinia (Dosinia) peralta (Vredenburg 1928)
R category
Bivalvia - Cardiida - Solecurtidae
Solecurtus sp. Blainville 1824
R category
Bivalvia - Cardiida - Tellinidae
Apolymetis aizawlensis
A category
Tellina (Oudardia) sp. ()
R category
Tellina (Tellinella) pseudohilli
R category
Tellina (Tellinella) hilli
R category
Tellina (Phylloda) cf. foliacea
R category
Tellina (Eurytellina) pilgrimi Cox 1936
F category
Bivalvia - Carditida - Astartidae
Astarte (Bathiamena) informal sp. 1 Sowerby 1816
R category
Astarte (Bathiamena) informal sp. 2 Sowerby 1816
F category
Bivalvia - Carditida - Carditidae
Cardita (Glans) quilonensis Dey 1961
R category
Bivalvia - Nuculida - Nuculidae
Nucula informal sp. 1 Lamarck 1799
R category
Malacostraca - Decapoda - Calappidae
Calappa protopustulosa Noetling 1901
R category
Malacostraca - Decapoda
Typilobus granulosus Stoliczka 1871
R category
Echinoidea - Spatangoida - Schizasteridae
Schizaster alveolatus
F category
Schizaster baluchistanensis
R category
Chondrichthyes - Lamniformes - Lamnidae
Isurus spallanzanii
F category
Carcharodon carcharias (Linnaeus 1758)
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]