Semarang Ngemak Borehole B (104-112 m) - Java (Miocene of Indonesia)

Where: Indonesia (7.0° S, 110.4° E: paleocoordinates 6.8° S, 114.8° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Early/Lower Miocene (23.0 - 16.0 Ma)

• STRATIGRAPHIC RELATIONS: Unknown lithostratigraphic unit and relationship to other units. AGE: Late Miocene.

• formation-level stratigraphic resolution

Environment/lithology: marine

• ENVIRONMENT: Environmental data not reported in text.
• LITHOLOGY: Lithologic and lithification data not reported in text.

Size class: macrofossils

Collection methods: core,

• COLLECTOR: Presumably K. Martin. REPOSITORY: Natt. Natuurhist. Mus., Leiden and GRDC Coll., Bandung (Indonesia).

Primary reference: S. K. Skwarko. 1994. Mollusca in Indonesian Cenozoic biostratigraphy (a computerised compilation) [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 70092: authorized by Austin Hendy, entered by Austin Hendy on 16.03.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• COMPLETENESS: Exhaustive for Mollusca. Other groups not treated by primary reference. NOMENCLATURE: Authoritative and relatively modern nomenclature applied. Nomenclature revised by van den Hoek et al. (2002) and Hendy (2007).
Show authors, comments, and common names
unclassified
  -
Argyropeda spinigerum
Scaphopoda
 Gadilida - Entalinidae
Entalina compressum
 Gadilida - Gadilidae
Cadulus martini
Cadulus martini tusk shell
 Dentaliida - Dentaliidae
Dentalium heptagonum, Dentalium jonker, Dentalium spiniforme, "Dentalium (Antalis) sp." = Antalis
Dentalium jonker tusk shell
"Dentalium (Antalis) sp." = Antalis Adams and Adams 1854 tusk shell
Gastropoda
 Heterostropha - Pyramidellidae
Turbonilla samargana
 Cerithioidea - Siliquariidae
Tenagodus sp.
Tenagodus sp. Guettard 1770 snail
 Cerithioidea - Thiaridae
"Melania samarangana" = Thiara
"Melania samarangana" = Thiara snail
 Sorbeoconcha - Newtoniellidae
Ataxocerithium dijki
Ataxocerithium dijki Martin 1884 snail
 Sorbeoconcha - Strombidae
Strombus (Lambiostrombus) turritus
 Neogastropoda - Marginellidae
Marginella dijki, Marginella grissensis
Marginella dijki margin shell
Marginella grissensis margin shell
 Neogastropoda - Olividae
Ancilla (Ancilla) parvula
 Neogastropoda - Turridae
Gemmula (Gemmula) imitatrix
Gemmula (Gemmula) imitatrix Martin 1916 turrid
 Neogastropoda - Terebridae
Terebra dijki, Terebra (Diplomeriza) smithi
Terebra dijki auger snail
 Sorbeoconcha - Naticidae
Natica (Natica) aurita, Sinum undulatus, "Lunatia atricapilla" = Pliconacca atricapilla, Polinices (Naticina) candidissima
Sinum undulatus moon snail
"Lunatia atricapilla" = Pliconacca atricapilla Martin 1884 moon snail