NMB Loc. 12814 - Esmeraldas [Borbon Fm] (Miocene of Ecuador)

Also known as PJ 0953

Where: Ecuador (0.9° N, 79.9° W: paleocoordinates 0.1° N, 77.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Borbon Formation, Middle Miocene (16.0 - 11.6 Ma)

• STRATIGRAPHIC RELATIONS: From the Borbon Fm, which is regionally overlain by the Esmeraldas Fm (Pliocene). AGE: Middle Miocene, on the basis of microfossil biostratigraphy; nannofossil zones N11-13; planktonic zones N13-N14. STRATIGRAPHIC POSITION: Molluscs in lenses, 2-3 m above high tide, partly in crossbedded layers. In conglomerates, mostly pectinids, in sandstones, Turritella and large Modiolus.

• bed-level stratigraphic resolution

Environment/lithology: coastal; shelly/skeletal conglomerate and shelly/skeletal sandstone

• No paleoenvironmental data provided.
• LITHIFICATION: Unknown. LITHOLOGY: Molluscs in lenses, 2-3 m above high tide, partly in crossbedded layers. In conglomerates, mostly pectinids, in sandstones, Turritella and large Modiolus.

Size class: macrofossils

Collected by Jung in 1971; reposited in the NMB

Collection methods: surface (in situ),

• COLLECTOR: P. Jung, 1971. REPOSITORY: Naturhistorisches Museum Basel, Switzerland (NMB).

Primary reference: P. Jung. 1989. Unpublished notes on Caribbean collection of the Naturhistorisches Museum Basel. [A. Hendy/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 134906: authorized by Austin Hendy, entered by Austin Hendy on 18.10.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

• NOMENCLATURE: Authoritative publication, with species-resolution identifications, and modern nomenclature. COVERAGE: Limited to taxa described in text.
Bivalvia
 Arcida - Arcidae
Anadara sp. Gray 1847 ark
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
 Cardiida - Veneridae
"Chione (Lirophora) sp." = Lirophora
"Chione (Lirophora) sp." = Lirophora Conrad 1863 venus clam
Gastropoda
 Neogastropoda - Melongenidae
Melongena sp. Schumacher 1817 snail
 Neogastropoda - Conidae
Conus sp. Linnaeus 1758 cone shell
 Naticoidea - Naticidae
Polinices sp. Monfort 1810 moon snail
Neverita sp. Risso 1826 moon snail
 Sorbeoconcha - Turritellidae
Turritella sp. Lamarck 1799 turret shell