Hill No. 3, Banana River [Rio Banano Fm] (Pliocene of Costa Rica)

Where: Costa Rica (9.6° N, 82.8° W: paleocoordinates 9.5° N, 82.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Rio Banano Formation, Piacenzian (3.6 - 2.6 Ma)

• LITHOSTRATIGRAPHY: The Rio Banano Formation sits diachronously with abrupt lithological transition on the Uscari Formation, mostly conformably and sometimes disconformably. The Rio Banano Formation passes conformably into the Quebrada Chocolate Formation in the area immediately west of Limon but throughout most of the southern Limon Basin it is unconformably overlain by the breccia and coarse grained volcaniclastics of the Suretka Formation. AGE: direct date extrapolated from Bybell (1999) and Collins et al. (1999). STRATIGRAPHIC POSITION: Collection is representative of formation.

• formation-level stratigraphic resolution

Environment/lithology: marine; siliciclastic sediments

• No paleoenvironmental data provided.
• LITHIFICATION: Unknown. LITHOLOGY: No lithologic data provided, but assumed to be siliciclastic.

Size class: macrofossils

Reposited in the PRI

Collection methods: surface (in situ),


Primary reference: A. A. Olsson. 1922. The Miocene of Northern Costa Rica. Bulletins of American Paleontology 9(39):1-309 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 134652: authorized by Austin Hendy, entered by Austin Hendy on 12.10.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

• NOMENCLATURE: Authoritative publication, with species-resolution identifications, and antiquated nomenclature. COVERAGE: Exhaustive for molluscs.
 Arcida - Arcidae
"Arca lloydi" = Anadara (Cunearca) lloydi, "Arca hindsi" = Anadara (Cunearca) hindsi
"Arca lloydi" = Anadara (Cunearca) lloydi Olsson 1922 ark
"Arca hindsi" = Anadara (Cunearca) hindsi Olsson 1922 ark
 Arcida - Glycymerididae
Glycymeris castaneus Lamarck 1819 clam
 Pectinida - Anomiidae
Placunanomia lithobleta Dall 1898 scallop
 Carditida - Carditidae
"Venericardia terryi" = Cyclocardia terryi
"Venericardia terryi" = Cyclocardia terryi Olsson 1922 clam
 Pholadida - Corbulidae
"Corbula orosi n. sp." = Caryocorbula orosi, "Corbula oropendula" = Caryocorbula oropendula, "Corbula vieta" = Varicorbula vieta
"Corbula orosi n. sp." = Caryocorbula orosi Olsson 1922 clam
"Corbula oropendula" = Caryocorbula oropendula Olsson 1922 clam
"Corbula vieta" = Varicorbula vieta Guppy 1866 clam
 Cardiida - Mesodesmatidae
Mesodesma costaricensis n. sp. Olsson 1922 clam
 Cardiida - Mactridae
"Mactra (Mactrella) alata" = Mactrellona alata
"Mactra (Mactrella) alata" = Mactrellona alata Spengler 1802 clam
 Cardiida - Veneridae
Chione costaricensis n. sp. Olsson 1922 venus clam
Dosinia acetabulum Conrad 1832 venus clam
"Pitaria vanwinkleae n. sp." = Hysteroconcha rosea vanwinkleae Olsson 1922 venus clam
 Cardiida - Tellinidae
Strigilla musanica n. sp. Olsson 1922 tellin clam
Tellina (Tellidora) cristata Récluz 1842 tellin clam
Macoma costaricana Olsson 1922 tellin clam
"Macoma (Psammacoma) gatunensis" = Psammacoma gatunensis Toula 1909 tellin clam
 Cardiida - Psammobiidae
Sanguinolaria alouatta n. sp. Olsson 1922 clam
 Cardiida - Semelidae
Semele laevis Sowerby 1833 clam
SUBSPECIES: Semele laevis costaricensis
 Protobranchia - Nuculanidae
"Leda balboae" = Saccella balboae, "Leda ensinoides n. sp." = Adrana ensinoides
"Leda balboae" = Saccella balboae Brown and Pilsbry 1911 pointed nut clam
"Leda ensinoides n. sp." = Adrana ensinoides Olsson 1922 pointed nut clam
 Neogastropoda - Olividae
Olivella (Dactylidella) paraisa Olsson 1956 olive snail
 Neogastropoda - Columbellidae
"Strombina sincola" = Sincola (Sincola) sincola
"Strombina sincola" = Sincola (Sincola) sincola Olsson 1922 snail
 Neogastropoda - Buccinidae
Northia northiae Gray in Griffith & Pidgeon 1833 true whelk
SUBSPECIES: Northia northiae miocenica
 Neogastropoda - Drilliidae
Drillia musacina Olsson 1922 snail
 Neogastropoda - Conidae
"Conus recognitus" = Conus (Pyruconus) recognitus, "Conus harrisi n. sp." = Conus burckhardti harrisi
"Conus recognitus" = Conus (Pyruconus) recognitus Guppy 1867 cone shell
"Conus harrisi n. sp." = Conus burckhardti harrisi Olsson 1922 cone shell
 Neogastropoda - Terebridae
Terebra costaricensis Olsson 1922 auger snail
 Naticoidea - Naticidae
"Polinices subclausa" = Polinices hepaticus Röding 1798 moon snail
Polinices stanislasmeunieri Maury 1917 moon snail
 Tonnoidea - Cassidae
Cassis sulcifera Sowerby 1850 snail
 Heterostropha - Acteonidae
"Actaeon costaricensis" = Acteon costaricensis
"Actaeon costaricensis" = Acteon costaricensis Olsson 1922 snail