PBDB Collection

Sekurau (Miocene of Indonesia)

Where: Borneo, Indonesia (0.7° N, 117.8° E: paleocoordinates 0.8° N, 118.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Late/Upper Miocene (11.6 - 5.3 Ma)

• these beds may involve part of the Upper Sangkulirang Marls and Menubar Marls

• group of beds-level stratigraphic resolution

Environment/lithology: marine; limestone and poorly lithified, shelly/skeletal, sandy, calcareous claystone

• ...light-coloured, massive to well-bedded clays and clay shales between limestone layers, the former often with a coaly admixture and with subordinate sandstones or calcareous sandstones. At many places the sandy-clayey deposits proved to contain a molluscan fauna (some of the shells are filled with fine-grained, sandy material).

•JA: I'm scoring this as poorly lithified based on all the above

Size class: macrofossils

Collection methods: collected by M. Schmidt in 1902, specimens housed at the Rijkmuseum van Geologie en Mineralogie

Primary reference: C. Beets. 1984. Preangerian (Late Miocene) Mollusca from a hill near Sekurau, northern Kutai, Kalimantan Timur (East Borneo). Scripta Geologica 74:1-37 [J. Alroy/E. Leckey/E. Leckey]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 42311: authorized by John Alroy, entered by Erin Leckey on 27.07.2004, edited by Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Gastropoda
Trochoidea - Turbinidae	Turbo (Marmarostoma) rutteni Turbo (Marmarostoma) rutteni snail
Cerithioidea - Cerithiidae	Rhinoclavis (Rhinoclavis) junghuhni, Cerithium mangkalihatense, Cerithium (Cerithium) nodulosum Rhinoclavis (Rhinoclavis) junghuhni cerith snail Cerithium mangkalihatense cerith snail Cerithium (Cerithium) nodulosum Bruguière 1792 cerith snail
Cerithioidea - Turritellidae	Turritella talarensis, "Turritella cingulifera" = Turritella (Kurosioia) cingulifera Turritella talarensis turret shell "Turritella cingulifera" = Turritella (Kurosioia) cingulifera Sowerby 1825 turret shell
Neogastropoda - Fasciolariidae	? Buccinofusus sp. ? Buccinofusus sp. Conrad 1868 snail
Neogastropoda - Nassariidae	"Alectrion (Zeuxis) siquijorensis" = Nassarius (Alectrion), Alectrion (Zeuxis) ovum "Alectrion (Zeuxis) siquijorensis" = Nassarius (Alectrion) snail Alectrion (Zeuxis) ovum Martin 1879 snail
Neogastropoda - Conidae	"Conus vimineus" = Conasprella (Fusiconus) vimineus "Conus vimineus" = Conasprella (Fusiconus) vimineus Reeve 1849 cone shell
Neogastropoda - Turridae	Lophiotoma brevicaudata, "Maoritomella batjanensis" = Tomopleura (Maoritomella) Lophiotoma brevicaudata turrid "Maoritomella batjanensis" = Tomopleura (Maoritomella) turrid
Neogastropoda - Borsoniidae	Microdrillia sp. Microdrillia sp. Casey 1903 snail
Neogastropoda - Clavatulidae	Turricula (Turricula) javana Turricula (Turricula) javana snail T. T. javana tegalensis
Neogastropoda - Drilliidae	Clathrodrillia kutaiana n. sp., Clathrodrillia sp. Clathrodrillia kutaiana n. sp. snail Clathrodrillia sp. Dall 1918 snail
Neogastropoda - Terebridae	Strioterebrum (Strioterebrum) iravadicum Strioterebrum (Strioterebrum) iravadicum auger snail
Neogastropoda - Mangeliidae	Cythara (Cythara) zothecula n. sp., Cythara sp. Cythara (Cythara) zothecula n. sp. snail Cythara sp. Schumacher 1817 snail
Neogastropoda - Marginellidae	"Marginella (Cryptospira) aff. elegans" = Cryptospira, ? Marginella sp., "Marginella (Eratoidea) vultuosa n. sp." = Eratoidea "Marginella (Cryptospira) aff. elegans" = Cryptospira margin shell ? Marginella sp. Lamarck 1799 margin shell "Marginella (Eratoidea) vultuosa n. sp." = Eratoidea margin shell
Neogastropoda - Volutidae	? Cymbiola sp., Lyria (Harpella) cf. overmanae ? Cymbiola sp. Swainson 1831 volute Lyria (Harpella) cf. overmanae volute
Neogastropoda - Muricidae	Murex (Murex) djarianensis Murex (Murex) djarianensis Martin 1895 murex snail
Neogastropoda - Mitridae	Mitra (Tiara) menkrawitensis, Mitra (Mitra) sphaerulata Mitra (Tiara) menkrawitensis mitre shell Mitra (Mitra) sphaerulata mitre shell
Neogastropoda - Ancillariidae	"Ancilla (Baryspira) schmidti n. sp." = Amalda (Baryspira) "Ancilla (Baryspira) schmidti n. sp." = Amalda (Baryspira) snail
Neogastropoda - Olividae	Ancilla (Sparella) cinnamomea Ancilla (Sparella) cinnamomea Lamarck 1801 olive snail
Neogastropoda - Costellariidae	Vexillum (Costellaria) melongena, Vexillum (Costellaria) sanguisuga, Vexillum (Costellaria) thangaense, Vexillum (Costellaria) javanum Vexillum (Costellaria) melongena ribbed mitre Vexillum (Costellaria) sanguisuga ribbed mitre Vexillum (Costellaria) thangaense ribbed mitre Vexillum (Costellaria) javanum Martin 1879 ribbed mitre
Sorbeoconcha - Cassidae	"Phalium (Semicassis) bisulcatum" = Semicassis bisulcata "Phalium (Semicassis) bisulcatum" = Semicassis bisulcata Schubert and Wagner 1829 snail
Sorbeoconcha - Strombidae	Tibia (Tibia) cf. verbeeki, Strombus sp. Tibia (Tibia) cf. verbeeki true conch Strombus sp. Linnaeus 1758 conch
Sorbeoconcha - Rostellariidae	"Rimella (Dientomochilus) javana" = Varicospira javana "Rimella (Dientomochilus) javana" = Varicospira javana Martin 1879 snail
Sorbeoconcha - Naticidae	"Notocochlis gualteriana" = Natica gualteriana, Natica helvacea, Eunaticina (Eunaticina) visenda n. sp. "Notocochlis gualteriana" = Natica gualteriana Récluz 1843 moon snail Natica helvacea Lamarck 1822 moon snail Eunaticina (Eunaticina) visenda n. sp. moon snail
Bivalvia
Lucinida - Lucinidae	"Lucina" sp. "Lucina" sp. Bruguière 1797 clam
Cardiida - Solecurtidae	Azorinus (Azorinus) coarctatus Azorinus (Azorinus) coarctatus Gmelin 1791 clam
Cardiida - Psammobiidae	"Gari" sp. "Gari" sp. Schumacher 1817 clam
Cardiida - Veneridae	Placamen isabellina, Paphia (Paratapes) neglecta, Dosinia (Dosinia) boettegeri, Circe (Circe) scripta Placamen isabellina venus clam some well preserved valves Paphia (Paratapes) neglecta venus clam Dosinia (Dosinia) boettegeri venus clam Circe (Circe) scripta Linnaeus 1758 Script Venus a few fragments and damaged valves
Cardiida - Ungulinidae	Cycladicama (Cycladicama) oblonga Cycladicama (Cycladicama) oblonga clam lots of valves
Pholadida - Corbulidae	Corbula cf. erythrodon, Corbula solidula, "Corbula taitensis" = Corbula (Anisocorbula) taitensis, "Corbula tjiguhanensis" = Corbula (Bicorbula) tjiguhanensis Corbula cf. erythrodon clam Corbula solidula clam "Corbula taitensis" = Corbula (Anisocorbula) taitensis Lamarck 1818 clam C. taitensis acuticosta "Corbula tjiguhanensis" = Corbula (Bicorbula) tjiguhanensis Martin 1922 clam
Ostreida - Ostreidae	Ostrea sp. Ostrea sp. Linnaeus 1758 oyster a few juvenile valves
Pectinida - Anomiidae	Anomia (Anomia) cf. verbeeki Anomia (Anomia) cf. verbeeki Martin 1881 jingle
Pectinida - Placunidae	"Placuna (Placuna) ephippium" = Placuna (Ephippium) ephippium, "Placuna (Placuna) quadrangula" = Placuna (Ephippium) ephippium "Placuna (Placuna) ephippium" = Placuna (Ephippium) ephippium Philipsson 1788 scallop "Placuna (Placuna) quadrangula" = Placuna (Ephippium) ephippium Philipsson 1788 scallop
Pectinida - Pectinoidae	"Amussium hulshofi" = Amusium hulshofi, "Chlamys senatoria" = Mimachlamys senatoria "Amussium hulshofi" = Amusium hulshofi Martin 1883 scallop a few fragments "Chlamys senatoria" = Mimachlamys senatoria Gmelin 1791 scallop fragmentary valve
Arcida - Arcidae	Striarca thielei, Anadara sp., Anadara (Anadara) antiquata, Anadara ferruginea Striarca thielei clam Anadara sp. Gray 1847 ark Anadara (Anadara) antiquata Linnaeus 1758 ark Anadara ferruginea Reeve 1844 rusty ark lots of valves
Nuculanida - Sareptidae	Portlandia (Portlandia) carolimartini n. sp. Portlandia (Portlandia) carolimartini n. sp. clam
Scaphopoda
Dentaliida - Dentaliidae	Dentalium sp., Dentalium (Dentalium) javanum Dentalium sp. Linnaeus 1758 tusk shell Dentalium (Dentalium) javanum tusk shell D. D. javanum tutongense (n. subsp.)