Upper Bhuban Fm - Loc. 1 (Miocene of India)

Where: India (23.7° N, 92.7° E: paleocoordinates 16.4° N, 94.0° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Upper Bhuban Formation (Surma Group), Early/Lower Miocene (23.0 - 16.0 Ma)

• 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 bed of about 1 m thickness within section o 8 m in thickness. AGE: Aquitanian-Burdigalian, Early Miocene. STRATIGRAPHIC POSITION: From near top of section.

• bed-level stratigraphic resolution

Environment/lithology: shoreface; lithified, silty sandstone and poorly lithified marl

• ENVIRONMENT: Shallow marine (inner neritic to littoral) environment.
• SPECIFIC LITHOLOGY: Silty sandstone. LITHIFICATION: Lithified on the basis of taphonomic details (casts and molds).

Size class: macrofossils

Preservation: cast

Reposited in the GSI

Collection methods: surface (in situ),

• COLLECTORS: R. P. Tiwari (unknown date). REPOSITORY: Geological Survey of India (GSI), Pachhunga University College (PUC)

Primary reference: B. P. Tiwari. 2001. Neogene palaeontology of the Surma Group, Mizoram, India. 1 - The Arcoida (Mollusca: Bivalvia). Journal of the Paleontological Society of India 46:147-160 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 72181: authorized by Austin Hendy, entered by Austin Hendy on 26.05.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited list, but probably exhaustive Arcoida. other bivalves, gastropods, scaphopods, echinoiderms, and fish are noted to be present, but not listed. NOMENCLATURE: Authoritative publication with modern nomenclature, subgenus and species resolution assignments
Show authors, comments, and common names
Bivalvia
 Arcida - Arcidae
Arca newtoni, Anadara daviesi, Anadara craticulata, Anadara garoensis, Anadara (Lunarca) kachharai n. sp., Anadara cf. gourae
Arca newtoni Vredenburg 1928 ark
Anadara daviesi Mukerjee 1939 ark
Anadara craticulata Nyst 1848 ark
Anadara garoensis Mukerjee 1939 ark
Anadara (Lunarca) kachharai n. sp. Tiwari 2001 ark
Anadara cf. gourae Dey 1961 ark