Middle Creek [Rio Banano Fm] (Pliocene of Costa Rica)

Where: Costa Rica (9.7° N, 82.8° W: paleocoordinates 9.6° N, 82.3° 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 134653: 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.
 Pectinida - Propeamussiidae
"Pecten oligolepis" = Cyclopecten oligolepis
"Pecten oligolepis" = Cyclopecten oligolepis Brown and Pilsbry 1913 mud scallop
 Pectinida - Anomiidae
Anomia simplex d'Orbigny 1845 jingle
 Carditida - Crassatellidae
"Crassatellites (Crassinella) bowdenensis" = Crassinella bowdenensis, "Crassatellites (Crassinella) midiensis" = Crassinella midiensis
"Crassatellites (Crassinella) bowdenensis" = Crassinella bowdenensis Dall 1903 clam
SUBSPECIES: Crassatellites (Crassinella) bowdenensis costaricensis
"Crassatellites (Crassinella) midiensis" = Crassinella midiensis Olsson 1922 clam
 Carditida - Carditidae
"Venericardia scabricostata" = Cardita (Glans) scabricostata
"Venericardia scabricostata" = Cardita (Glans) scabricostata Guppy 1866 clam
 Pholadida - Corbulidae
"Corbula viminea" = Bothrocorbula viminea
"Corbula viminea" = Bothrocorbula viminea Guppy 1866 clam
 Cardiida - Chamidae
Arcinella arcinella Linnaeus 1767 jewel box
 Cardiida - Ungulinidae
"Diplodonta collina n. sp." = Diplodonta (Diplodonta) collina
"Diplodonta collina n. sp." = Diplodonta (Diplodonta) collina Olsson 1922 clam
 Cardiida - Veneridae
"Gafrarium altum" = Gouldia alta, Macrocallista maculata
"Gafrarium altum" = Gouldia alta Dall 1903 venus clam
SUBSPECIES: Gafrarium altum costaricensis
Macrocallista maculata Linnaeus 1758 venus clam
 Cardiida - Tellinidae
Strigilla pisiformis Linnaeus 1758 tellin clam
 Cardiida - Cardiidae
"Cardium (Laevicardium) serratum" = Laevicardium serratum
"Cardium (Laevicardium) serratum" = Laevicardium serratum Linnaeus 1758 cockle
 Lucinida - Lucinidae
"Divaricella quadrisulcata" = Divalinga quadrisulcata, "Phacoides (Lucinisca) costaricensis n. sp." = Lucinisca costaricensis, "Phacoides (Here) trisulcatus" = Cavilinga trisulcata
"Divaricella quadrisulcata" = Divalinga quadrisulcata d'Orbigny 1846 clam
"Phacoides (Lucinisca) costaricensis n. sp." = Lucinisca costaricensis Olsson 1922 clam
"Phacoides (Here) trisulcatus" = Cavilinga trisulcata Conrad 1841 clam
 Cephalaspidea - Cylichnidae
Acteocina bullata, "Acteocina (Cylichnella) triticumtritonis" = Cylichnella triticumtritonis, Bullaria paupercula
Acteocina bullata Kiener 1834 barrel-bubble
"Acteocina (Cylichnella) triticumtritonis" = Cylichnella triticumtritonis Maury 1917 snail
Bullaria paupercula Sowerby 1849 snail
 Neogastropoda - Olividae
Oliva brevispira Gabb 1873 olive snail
 Neogastropoda - Columbellidae
"Strombina costaricensis n. sp." = Strombina (Lirastrombina) costaricensis
"Strombina costaricensis n. sp." = Strombina (Lirastrombina) costaricensis Olsson 1922 snail
 Neogastropoda - Buccinidae
Northia northiae Gray in Griffith & Pidgeon 1833 true whelk
SUBSPECIES: Northia northiae miocenica
 Neogastropoda - Conidae
Conus imitator Brown and Pilsbry 1911 cone shell
 Neogastropoda - Terebridae
"Terebra spirifera" = Strioterebrum spiriferum
"Terebra spirifera" = Strioterebrum spiriferum Dall 1895 auger snail
SUBSPECIES: Terebra spirifera midiensis
 Stromboidea - Strombidae
Strombus gatunensis Toula 1908 conch
 Sorbeoconcha - Cerithiidae
Clava alajuela n. sp. Olsson 1922 cerith snail
 Heterostropha - Acteonidae
"Actaeon costaricensis" = Acteon costaricensis
"Actaeon costaricensis" = Acteon costaricensis Olsson 1922 snail
 Heterostropha - Ringiculidae
Ringicula dominicana Maury 1917 snail
 Neritoidea - Neritidae
"Neritina viridemaris" = Smaragdia (Smaragdia) viridis viridemaris Maury 1917 snail
 Turbinoidea - Phasianellidae
"Phasianella mollis" = Tricolia mollis
"Phasianella mollis" = Tricolia mollis Olsson 1922 snail
 Trochoidea - Trochidae
"Calliostoma mancinella" = Calliostoma (Elmerlinia) mancinella
"Calliostoma mancinella" = Calliostoma (Elmerlinia) mancinella Olsson 1922 top snail
Tucetona canalis
"Glycymeris lloydsmithi" = Tucetona canalis lloydsmithi
"Glycymeris lloydsmithi" = Tucetona canalis lloydsmithi Brown and Pilsbry 1917