Where: Pakistan (25.5° N, 62.8° E: paleocoordinates 23.6° N, 61.3° E)
• coordinate stated in text
• outcrop-level geographic resolution
When: Mekran Formation, Late/Upper Miocene (11.6 - 5.3 Ma)
• STRATIGRAPHIC RELATIONS: Overlies the Gaj beds. AGE: Somewhat unclear. Younger than Early Miocene Gaj beds (Aquitanian-Burdigalian), and younger than the Gwadar beds (Pliocene), so probably ranging from Middle to Late Miocene in age. Age will be amended following consideration of taxonomic similarities with Indonesian faunas. STRATIGRAPHIC POSITION: Unknown position within unit.
• group of beds-level stratigraphic resolution
Environment/lithology: coastal; poorly lithified siliciclastic sediments
Size class: macrofossils
Collected by Vredenburg
Collection methods: surface (in situ),
• COLLECTORS: Multiple collectors including W. Blanford, Wynne, Hira Lal, Ram Singh, and Noetling (staff of Geological Survey of India) during the early 1900's. REPOSITORY: Geological Survey of India, with voucher specimens possibly at the BMNH.
Primary reference: E. Vredenburg. 1925. Description of Mollusca from the post-Eocene Tertiary formation of north-western India: Cephalopoda, Opisthobranchiata, Siphonostomata. Memoirs of the Geological Survey of India 50(1):1-350 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 77154: authorized by Austin Hendy, entered by Austin Hendy on 21.12.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Venus (Clementia) papyracea" = Clementia (Clementia) papyracea, "Dosinia subpenicillata" = Dosina subpenicillata, "Dosinia peralta" = Dosinia (Dosinia) peralta
"Venus (Clementia) papyracea" = Clementia (Clementia) papyracea Gray 1825 venus clam INCLUDES: Venus (Clementia) papyracea grandis
"Dosinia subpenicillata" = Dosina subpenicillata Vredenburg 1928 venus clam
"Dosinia peralta" = Dosinia (Dosinia) peralta Vredenburg 1928 venus clam | |
Cardium (Laevicardium) unicolor Sowerby 1840 cockle | |
Arca newtoni Vredenburg 1928 ark
"Arca inflata" = Scapharca broughtoni Schrenck 1867 clam | |
Gastropoda | |
Turritella assimilis, "Turritella bantamensis" = Turritella (Turritella) bantamensis, "Turritella bandongensis" = Turritella (Turritella) bandongensis
Turritella assimilis Sowerby 1840 turret shell
"Turritella bantamensis" = Turritella (Turritella) bantamensis Martin 1905 turret shell
"Turritella bandongensis" = Turritella (Turritella) bandongensis Martin 1879 turret shell | |
Terebralia sublignitarum Vredenburg 1928 horn snail
Terebralia miosulcata Vredenburg 1928 horn snail
Terebralia dimorpha Vredenburg 1928 horn snail | |
"Conus (Leptoconus) scalaris" = Conus scalaris, Conus (Leptoconus) amadis
"Conus (Leptoconus) scalaris" = Conus scalaris Martin 1879 cone shell
Conus (Leptoconus) amadis Martini 1773 cone shell | |
Melongena (Pugilina) ponderosa Martin 1895 true whelk | |
Cerithiopsis mekranica Vredenburg 1928 snail
Natica globosa Philippi 1855 moon snail | |
"Solarium perspectivum" = Architectonica perspectiva
"Solarium perspectivum" = Architectonica perspectiva Linnaeus 1767 sundial |