Where: India (25.2° N, 90.7° E: paleocoordinates 15.9° N, 88.6° E)
• coordinate stated in text
• outcrop-level geographic resolution
When: Baghmara Formation, Early/Lower Miocene (23.0 - 16.0 Ma)
• STRATIGRAPHIC RELATIONS: Assumed by Hendy (2007) to originate from the Baghmara Fm, which regionally conformably underlies the Chengapara Fm (Burdigalian). AGE: Aquitaian-Burdigalian. STRATIGRAPHIC POSITION: From unknown position within formation
• bed-level stratigraphic resolution
Environment/lithology: transition zone or lower shoreface; poorly lithified, fine-grained, shelly/skeletal marl and lithified, concretionary sandstone
Size class: macrofossils
Preservation: original aragonite, original calcite
Collected by Mukerjee in 1924; reposited in the BMNH
• COLLECTORS: P.N. Mukerjee (1924). REPOSITORY: British Museum of Natural History.
Primary reference: P. N. Mukerjee. 1939. Fossil fauna from the Tertiary of Garo Hills, Assam. Palaeontologia Indica 28(1):1-101 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 76573: authorized by Austin Hendy, entered by Austin Hendy on 23.11.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Calyptraea rugosa Noetling 1895 slipper shell | |
"Turritella (Torculoidella) angulata" = Kapalmerella ranikoti, Turritella pinfoldi
"Turritella (Torculoidella) angulata" = Kapalmerella ranikoti Vredenburg 1928 turret shell
Turritella pinfoldi Vredenburg 1921 turret shell | |
"Drillia (Crassispira) cotteri" = Inquisitor cotteri
"Drillia (Crassispira) cotteri" = Inquisitor cotteri Vredenburg 1921 snail SUBSPECIES: D. (C.) cotteri cf. decemcostata
| |
Tibia cf. protofusus Vredenburg 1928 true conch | |
"Mitra (Chrysame) cf. sowerbyi" = Chrysame sowerbyi d'Orbigny 1852 mitre shell
Mitra granatinaeformis Martin 1884 mitre shell | |
| |
Ancilla (Sparella) birmanica Vredenburg 1921 olive snail | |
Babylonia pangkaensis Martin 1895 true whelk
Siphonalia (Kelletia) subspadicea Vredenburg 1921 true whelk | |
Nassarius ovum Martin 1879 snail
Nassaria neacolubrina snail
Nassaria birmanica Vredenburg 1921 snail
Nassaria cf. javana Martin 1879 snail | |
Clavolithes (Cyrtulus) seminudus Noetling 1901 snail | |
Melongena (Pugilina) praeponderosa Vredenburg 1921 snail | |
Turricula promensis Vredenburg 1921 snail | |
"Conus (Leptoconus) vimineus" = Conasprella (Fusiconus) vimineus, Conus (Leptoconus) cf. bonneti, Conus (Lithoconus) ineditus, Conus (Lithoconus) odengensis, Conus (Lithoconus) kyudawonensis, Conus (Dendroconus) cf. loroisii
"Conus (Leptoconus) vimineus" = Conasprella (Fusiconus) vimineus Reeve 1849 cone shell
Conus (Leptoconus) cf. bonneti Cossmann 1900 cone shell
Conus (Lithoconus) ineditus Michelotti 1861 cone shell
Conus (Lithoconus) odengensis Martin 1895 cone shell
Conus (Lithoconus) kyudawonensis Vredenburg 1921 cone shell
Conus (Dendroconus) cf. loroisii Kiener 1845 cone shell | |
"Terebra (Duplicaria) protoduplicata" = Duplicaria, Terebra (Duplicaria) maunguensis, Terebra (Duplicaria) woodwardiana, "Terebra (Myurella) reticulata" = Myurella reticulata, Terebra (Myurella) protomyuros, Terebra (Myurella) cf. birmanica
"Terebra (Duplicaria) protoduplicata" = Duplicaria auger snail
Terebra (Duplicaria) maunguensis Vredenburg 1921 auger snail
Terebra (Duplicaria) woodwardiana Martin 1879 auger snail SUBSPECIES: T. (D.) woodwardiana mindegyiensis
"Terebra (Myurella) reticulata" = Myurella reticulata Sowerby 1840 auger snail
Terebra (Myurella) protomyuros Noetling 1901 auger snail
Terebra (Myurella) cf. birmanica Vredenburg 1921 auger snail | |
Drillia (Brachytoma) tjemoroensis, Turris garoensis n. sp., Turris (Gemmula) birmanica, Turris (Gemmula) cf. thyrsus, "Turris (Gemmula) congener" = Gemmula congener, Clavatula (Perrona) birmanica
Drillia (Brachytoma) tjemoroensis Martin 1903 turrid
Turris garoensis n. sp. Mukerjee 1939 turrid
Turris (Gemmula) birmanica Vredenburg 1921 turrid
Turris (Gemmula) cf. thyrsus Vredenburg 1921 turrid
"Turris (Gemmula) congener" = Gemmula congener Smith 1894 turrid SUBSPECIES: T. (G.) congener mekranica
Clavatula (Perrona) birmanica Vredenburg 1921 turrid INCLUDES: C (P.) birmanica singuensis and C (P.) birmanica birmanica
| |
Vasum cf. basilicum Bellardi 1872 snail | |
Marginella (Cryptospira) birmanica Vredenburg 1923 margin shell | |
"Cancellaria (Bivetopsia) dertonensis" = Bivetopsia, Cancellaria cf. birmanica
"Cancellaria (Bivetopsia) dertonensis" = Bivetopsia snail
Cancellaria cf. birmanica Vredenburg 1921 snail | |
"Gyrineum tuberculatum" = Ranella tubercularis
"Gyrineum tuberculatum" = Ranella tubercularis Risso 1826 snail | |
Cassis cf. birmanica Vredenburg 1921 snail
Galeodea cf. echinophora Linnaeus 1758 snail | |
Bursa elegans frog shell | |
"Natica epiglottina" = Cochlis epiglottina, Sinum protoneritoideum, Sinum cf. cymba, Natica pellistigrina, Natica alapapilionis, Natica cf. dydmia, Natica helvacea, Natica cf. vitellus, Natica coxi n. sp.
"Natica epiglottina" = Cochlis epiglottina Lamarck 1804 moon snail
Sinum protoneritoideum moon snail
Sinum cf. cymba Menke 1828 moon snail
Natica pellistigrina moon snail
Natica alapapilionis Chemntiz 1781 moon snail
Natica cf. dydmia Bolten 1798 moon snail
Natica helvacea Lamarck 1822 moon snail
Natica cf. vitellus Linnaeus 1758 moon snail
Natica coxi n. sp. Mukerjee 1939 moon snail | |
Vermetus cf. javanus Martin 1879 worm shell | |
"Architectonica perspectivum" = Architectonica perspectiva Linnaeus 1767 sundial
Architectonica nitens Noetling 1901 sundial
Torinia buddha snail | |
Bivalvia | |
"Barbatia bataviana" = Arcopsis (Arcopsis) bataviana
"Barbatia bataviana" = Arcopsis (Arcopsis) bataviana Martin 1883 clam SUBSPECIES: B. bataviana carinata
| |
"Anadara granosa" = Anadara (Tegillarca) granosa, Anadara craticulata, Anadara garoensis n. sp., Anadara daviesi n. sp., Trisidos tortuosa
"Anadara granosa" = Anadara (Tegillarca) granosa Linnaeus 1758 ark
Anadara craticulata Nyst 1848 ark
Anadara garoensis n. sp. Mukerjee 1939 ark
Anadara daviesi n. sp. Mukerjee 1939 ark
Trisidos tortuosa Linnaeus 1758 clam | |
Anomia cf. ephippium Linnaeus 1758 jingle
Indoplacuna sindiensis Vredenburg 1923 scallop | |
"Chlamys senatoria" = Mimachlamys senatoria
"Chlamys senatoria" = Mimachlamys senatoria Gmelin 1791 scallop | |
"Pinna (Atrina) cf. vexillum" = Pinna vexillum
"Pinna (Atrina) cf. vexillum" = Pinna vexillum Born 1778 oyster | |
"Ostrea hyotis" = Hyotissa hyotis
"Ostrea hyotis" = Hyotissa hyotis Linnaeus 1758 Honeycomb Oyster | |
Ostrea latimarginata Vredenburg 1908 oyster | |
Lucina pagana Noetling 1901 clam
Lucina darchiaciana Noetling 1901 clam | |
Corbula tunicosulcata Vredenburg 1928 clam | |
"Macrocallista erycina" = Costacallista erycina, Pitar sp., Hysteroconcha (Lamelliconcha) protophilippinarum, Timoclea subspadicea, "Dosinia subpenicillata" = Dosina subpenicillata, Dosinia protojuvenilis
"Macrocallista erycina" = Costacallista erycina Linnaeaus 1758 venus clam
Pitar sp. Römer 1857 venus clam
Hysteroconcha (Lamelliconcha) protophilippinarum Noetling 1901 venus clam
Timoclea subspadicea venus clam
"Dosinia subpenicillata" = Dosina subpenicillata Vredenburg 1928 venus clam
Dosinia protojuvenilis Noetling 1901 venus clam | |
"Taras (Diplodonta) rotundatus" = Diplodonta, "Taras (Diplodonta) incerta" = Diplodonta incerta
"Taras (Diplodonta) rotundatus" = Diplodonta clam
"Taras (Diplodonta) incerta" = Diplodonta incerta d'Archiac 1850 clam | |
"Mactra protoreevesii" = Mactra (Mactra) protoreevesii, Mactra (Heteromactra) grateloupi
"Mactra protoreevesii" = Mactra (Mactra) protoreevesii Noetling 1901 clam
Mactra (Heteromactra) grateloupi Cossmann and Peyrot 1909 clam | |
Cardium (Trachycardium) minbuense Noetling 1901 cockle | |
Donax (Hecuba) protoflexuosa Noetling 1901 clam | |
Apolymetis grimesi tellin clam
Tellina protostriatula Noetling 1901 tellin clam
"Tellina indifferens" = Tellina (Moerella) indifferens Noetling 1901 tellin clam | |
Psammobia kingi Noetling 1901 clam | |
Ensis sp. Schumacher 1817 clam | |
Eucrassatella rostrata Lamarck 1805 clam | |
Nucula alcocki Noetling 1895 nut clam | |
Nuculana virgo Martin 1879 pointed nut clam |