Comadre (Pliocene of Costa Rica)

Where: Costa Rica (9.7° N, 82.8° W: paleocoordinates 9.6° N, 82.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pliocene (5.3 - 2.6 Ma)

• LITHOSTRATIGRAPHY: Unknown. AGE: Pliocene, on the basis of faunal correlations. STRATIGRAPHIC POSITION: Unknown position within section.

• 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),

• COLLECTOR: Olsson, A. REPOSITORY: PRI.

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 134680: 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.
Bivalvia
 Arcida - Arcidae
"Arca cacica n. sp." = Anadara (Cunearca) cacica
"Arca cacica n. sp." = Anadara (Cunearca) cacica Olsson 1922 ark
 Arcida - Glycymerididae
"Glycymeris canalis" = Tucetona pectinata canalis
"Glycymeris canalis" = Tucetona pectinata canalis Brown and Pilsbry 1911 clam
 Pectinida - Anomiidae
Anomia simplex d'Orbigny 1845 jingle
 Carditida - Carditidae
"Venericardia scabricostata" = Cardita (Glans) scabricostata
"Venericardia scabricostata" = Cardita (Glans) scabricostata Guppy 1866 clam
 Cardiida - Veneridae
"Antigona blandiana" = Ventricolaria blandiana
"Antigona blandiana" = Ventricolaria blandiana Guppy 1873 venus clam
 Cardiida - Cardiidae
Protocardia costaricensis n. sp. Olsson 1922 cockle
Gastropoda
 Neogastropoda - Volutidae
Voluta alfaroi Dall 1912 volute
 Neogastropoda - Conidae
Conus imitator Brown and Pilsbry 1911 cone shell
 Vermetoidea - Vermetidae
Petaloconchus sculpturatus Lea 1846 worm shell
 Tonnoidea - Cassidae
Sconsia grayi Adams 1855 snail
SUBSPECIES: Sconsia laevigata gabbi