Where: Pakistan (26.9° N, 67.3° E: paleocoordinates 21.1° N, 67.0° E)
• coordinate stated in text
• outcrop-level geographic resolution
When: Gaj Formation, Early/Lower Miocene (23.0 - 16.0 Ma)
• STRATIGRAPHIC RELATIONS: From Gaj Fm, which conformably overlies the Nari Fm (Oligocene), and is unconformably overlain by the Nagri Fm (Late Miocene-Early Pliocene). THICKNESS: Ranges between 615-1384 m. AGE: Iqbal (1980) is inconsistent in stating age, with Late Miocene in text, but Early Miocene (Aquitanian) in figures. An Early Miocene age is assigned. STRATIGRAPHIC POSITION: Unknown position within Gaj Fm.
• bed-level stratigraphic resolution
Environment/lithology: offshore; poorly lithified, ferruginous, gypsiferous, brown, gray, green, red, argillaceous, sandy shale
Size class: macrofossils
Collected by Iqbar in 1966
Collection methods: surface (in situ),
• COLLECTOR: M. W. A. Iqbar (1966). REPOSITORY: Geological Survey of Pakistan.
Primary reference: M. W. A. Iqbal. 1980. Oligo-Miocene bivalves and gastropods from Kirthar Province, lower Indus Basin, Pakistan. Records of the Geological Society of Pakistan 51:1-59 [A. Hendy/A. Hendy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 77459: authorized by Austin Hendy, entered by Austin Hendy on 12.01.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
"Telescopium cf. charpentieri" = Cerithium pseudoobeliscus
"Telescopium cf. charpentieri" = Cerithium pseudoobeliscus Grateloup 1832 cerith snail | |
"Protoma retrodilatum" = Protoma retrodilatatum, Turritella narica
"Protoma retrodilatum" = Protoma retrodilatatum Vredenburg 1928 turret shell
Turritella narica Vredenburg 1928 turret shell | |
Terebralia sublignitarium horn snail
Terebralia miosulcata Vredenburg 1928 horn snail
Terebralia bidentata Defrance 1832 horn snail | |
"Euspirocrommium cf. oweni" = Pachycrommium oweni
"Euspirocrommium cf. oweni" = Pachycrommium oweni d'Archiac and Haime 1854 snail | |
Cirsotrema preyoungi, "Scala (Clathrus) gajensis" = Clathrus gajensis
Cirsotrema preyoungi Iqbal 1980 wentletrap
"Scala (Clathrus) gajensis" = Clathrus gajensis Vredenburg 1928 wentletrap | |
| |
Euthriofusus subregularis d'Archiac and Haime 1854 snail | |
Cantharus erythrostoma Reeve 1849 true whelk
Cominella annandalei Vredenburg 1925 true whelk | |
Conus (Lithoconus) ineditus Michelotti 1861 cone shell | |
Lyria anceps Michelotti 1861 volute | |
"Terebellum (Seraphs) cf. naricum" = Seraphs naricus
"Terebellum (Seraphs) cf. naricum" = Seraphs naricus Vredenburg 1925 snail | |
Tibia curta Sowerby 1842 true conch | |
"Tibia sindiensis" = Varicospira sindiensis
"Tibia sindiensis" = Varicospira sindiensis Vredenburg 1925 snail | |
Bivalvia | |
Chlamys cf. scrabrellus scallop | |
Anomia daduensis Iqbal 1980 jingle | |
Vulsella legumen d'Archiac and Haime 1854 oyster | |
Ostrea cf. resupinata Deshayes 1858 oyster
Ostrea minbuensis Cotter 1923 oyster
Ostrea latimarginata Vredenburg 1908 oyster | |
Arcopsis textiles clam | |
Arca submultiformis Vredenburg 1928 ark | |
Macrosolen cyclopeus Brongniart 1823 clam | |
Diplodonta incerta d'Archiac 1850 clam | |
? Pitar porrecta, "Clementia papyracea" = Clementia (Clementia) papyracea
? Pitar porrecta Koenen 1894 venus clam
"Clementia papyracea" = Clementia (Clementia) papyracea Gray 1825 venus clam | |
Corbula mekranica Vredenburg 1928 clam
Corbula tunicosulcata Vredenburg 1928 clam | |
Lucina cf. narica Vredenburg 1928 clam |