KW - Kankawati River, Vinjhan [Chasra Fm] (Miocene of India)

Where: India (23.1° N, 69.0° E: paleocoordinates 17.8° N, 68.3° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Chasra Formation, Burdigalian (20.4 - 16.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Chasra Fm, , which regionall overlies the Khari Nadi Fm (Late Oligocene). AGE: Burdigalian, on the basis of foraminiferal and macrofossil biostratigraphy. STRATIGRAPHIC POSITION: From 6 m high section, which includes a succession of siltstones, claystones, and sandstones, with 0.5-1.0 m thick intercalated sandy shell concentrations.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified, shelly/skeletal sandstone

• SPECIFIC LITHOLOGY: Intercalated sandy shell concentrations, in siltstones, claystones, and sandstones. LITHIFICATION:

Size class: macrofossils

Collected by Harzhauser et al in 2008; reposited in the NHMW

Collection methods: surface (float), surface (in situ),

• COLLECTORS: M. Harzhauser and colleagues, c. 2007-2008. REPOSITORY: NHMW, Vienna.

Primary reference: 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]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 111230: authorized by Austin Hendy, entered by Austin Hendy on 22.06.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropods; few bivalves mentioned. NOMENCLATURE: Authoritative publication with modern nomenclature, and species-resolution identifications.
Bivalvia
 Pectinida - Pectinoidae
Pectinidae indet. Wilkes 1810 scallop
 Pectinida - Placunidae
Placuna sp. Lightfoot 1786 scallop
 Pholadida - Teredinidae
Kuphus sp. Guettard 1770 clam
 Cardiida - Veneridae
Periglypta sp. Jukes-Browne 1914 venus clam
 Solenida - Solenidae
Solen sp. Linnaeus 1758 clam
Gastropoda
 Architaenioglossa - Ampullinidae
"Globularia carlei" = Cernina carlei, Pachycrommium harrisi
"Globularia carlei" = Cernina carlei Finlay 1927 snail
Pachycrommium harrisi Pannekoek 1936 snail
 Neogastropoda - Olivellidae
Agaronia pupa Sowerby 1840 snail
 Neogastropoda - Melongenidae
Pugilina eulactea Dey 1961 snail
 Neogastropoda - Fasciolariidae
Hemipolygona sp. Rovereto 1889 snail
 Neogastropoda - Volutidae
Athleta (Volutospina) dentata Sowerby 1839 volute
Lyria (Harpeola) jugosa Sowerby 1839 volute
 Neogastropoda - Turbinellidae
Turbinella affinis Sowerby 1839 snail
 Neogastropoda - Turridae
Turricula spuria Hedley 1922 turrid
Gemmula gajensis Vredenburg 1925 turrid
 Stromboidea - Strombidae
Persististrombus depertitus Sowerby 1840 true conch
 Stromboidea - Rostellariidae
Varicospira subrimosa d'Orbigny 1852 snail
 Naticoidea - Naticidae
Natica obscura Sowerby 1840 moon snail
 Tonnoidea - Ranellidae
Gyrineum bituberculare Lamarck 1816 triton shell
 Tonnoidea - Personidae
Distorsio decipiens Reeve 1844 snail
 Sorbeoconcha - Turritellidae
Turritella kachhensis Vredenburg 1928 turret shell
Turritella assimilis Sowerby 1840 turret shell
Haustator tauroperturritus Sacco 1895 turret shell
 Sorbeoconcha - Cerithiidae
"Cerithium rude" = Cerithium (Ptychocerithium) rude, "Cerithium pseudocorrugatum" = Cerithium (Ptychocerithium) pseudocorrugatum
"Cerithium rude" = Cerithium (Ptychocerithium) rude Sowerby 1840 cerith snail
"Cerithium pseudocorrugatum" = Cerithium (Ptychocerithium) pseudocorrugatum d'Orbigny 1852 cerith snail
 Turbinoidea - Phasianellidae
Phasianella aff. variegata Lamarck 1822 snail
 Trochoidea - Trochidae
Tectus cognatus Sowerby 1840 top snail
Echinoidea
 Clypeasteroida - Clypeasteridae
Clypeaster sp. Lamarck 1801 sand dollar
Anthozoa
 Zoantharia -
Scleractinia indet. Bourne 1900 stony coral
 Ichnofossils -
Thalassinoides sp. Ehrenberg 1944