Nari beds - NE of Quetta, Baluchistan (Oligocene of Pakistan)

Where: Pakistan (30.2° N, 67.0° E: paleocoordinates 20.8° N, 66.2° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Nari Formation, Early/Lower Oligocene (33.9 - 28.4 Ma)

• STRATIGRAPHIC RELATIONS: Basal beds of regional succession, and is overlain by the Gaj beds (Early Miocene). AGE: Early Oligocene, based on similarity with European faunas of Lattofian and Stampian age. STRATIGRAPHIC POSITION: Unknown position within unit.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified siliciclastic sediments

• ENVIRONMENT: Not stated in text, but presumably shallow shelf siliciclastic.
• SPECIFIC LITHOLOGY: Unknown, but presumably siliciclastic. LITHIFICATION: Poorly-lithified, based on figured specimens.

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 77157: authorized by Austin Hendy, entered by Austin Hendy on 21.12.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropoda, bivalvia, and scaphopoda. NOMENCLATURE: Antiquated, but from an authoritative publication, with use of species and subgenus resolution assignments. Nomenclature can be updated through reference to Harzhauser and Swarko publications.
Gastropoda
 Cerithioidea - Turritellidae
"Turritella strangulata" = Turritella (Peyrotia) strangulata
"Turritella strangulata" = Turritella (Peyrotia) strangulata Grateloup 1847 turret shell
 Sorbeoconcha - Rostellariidae
"Rimella subrimosa" = Varicospira subrimosa
"Rimella subrimosa" = Varicospira subrimosa d'Orbigny 1852 snail
SUBSPECIES: Rimella subrimosa narica
 Neogastropoda - Volutidae
Lyria anceps Michelotti 1861 volute
 Neogastropoda - Terebridae
"Terebra (Myurella) quettensis" = Myurella quettensis, Terebra narica
"Terebra (Myurella) quettensis" = Myurella quettensis Vredenburg 1921 auger snail
Terebra narica Vredenburg 1925 auger snail
 Neogastropoda - Turbinellidae
Turbinella episoma Michelotti 1861 snail
 Trochoidea - Turbinidae
"Turbo (Olearia) protocephoides" = Turbo protocepoides, "Turbo (Marmorostoma) pseudoundulatus" = Turbo pseudoundulatus
"Turbo (Olearia) protocephoides" = Turbo protocepoides Vredenburg 1928 snail
"Turbo (Marmorostoma) pseudoundulatus" = Turbo pseudoundulatus Vredenburg 1928 snail
 Trochoidea - Trochidae
"Trochus (Tectus) lucasianus" = Tectus lucasianus
"Trochus (Tectus) lucasianus" = Tectus lucasianus Brongniart 1823 top snail
Bivalvia
 Mytilida - Mytilidae
Lithodomus sublithophagus d'Orbigny 1850 mussel
 Pectinida - Pectinoidae
Pecten (Amussiopecten) labadyei d'Archaic and Haime 1853 scallop
 Lucinida - Lucinidae
"Lucina (Linga) columbella" = Linga (Linga) columbella, "Lucina (Denticulina) narica" = Lucina narica, Lucina (Gibbolucina) deperdita
"Lucina (Linga) columbella" = Linga (Linga) columbella Lamarck 1818 clam
"Lucina (Denticulina) narica" = Lucina narica Vredenburg 1928 clam
Lucina (Gibbolucina) deperdita Michelotti 1861 clam
 Cardiida - Veneridae
"Venus (Omphaloclathrum) puerpera" = Periglypta puerpera, Venus (Ventricola) multilamella
"Venus (Omphaloclathrum) puerpera" = Periglypta puerpera Linnaeus 1758 venus clam
SUBSPECIES: Venus (Omphaloclathrum) puerpera aglaurae
Venus (Ventricola) multilamella Lamarck 1818 venus clam
 Cardiida - Cardiidae
"Cardium (Trachycardium) verrucosum" = Vepricardium verrucosum
"Cardium (Trachycardium) verrucosum" = Vepricardium verrucosum Lamarck 1824 cockle
 Carditida - Carditidae
"Cardita (Venericardia) sp." = Venericardia, "Cardita (Glans) rovereti" = Glans rovereti
"Cardita (Venericardia) sp." = Venericardia Lamarck 1801 clam
"Cardita (Glans) rovereti" = Glans rovereti Vredenburg 1928 clam