Rio Guanabanon, Burica Peninsula [Charco Azul Fm] (Pliocene of Costa Rica)

Where: Costa Rica (8.0° N, 82.9° W: paleocoordinates 7.9° N, 82.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Charco Azul Formation, Pliocene (5.3 - 2.6 Ma)

• LITHOSTRATIGRAPHY: From Charco Azul Formation (Olsson 1942), which unconformably underlies the Armurelles Fm (Pleistocene). AGE: Pliocene as it is overlain by very different Pleistocene fauna Age supported by other sources, including Collins and Coates (1999). Correlated to Jama and Canoa Formations of Ecuador.

• bed-level stratigraphic resolution

Environment/lithology: offshore; unlithified, tuffaceous shale

• ENVIRONMENT: Deposited in deeper waters, probably between 100 and 400 fathoms.
• SPECIFIC LITHOLOGY: Soft tuffaceous shale. LITHIFICATION: Unlithified, base on figured specimens and lithologic description.

Size class: macrofossils

Reposited in the PRI

Collection methods: quarrying,

• COLLECTORS: Presumably collected by A.A. Olsson. REPOSITORIES: Collections reposited at PRI.

Primary reference: A. A. Olsson. 1942. Tertiary and Quaternary fossils from Burica Peninsula of Panama and Costa Rica. Bulletins of American Paleontology 27(106):1-106 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 66792: authorized by Austin Hendy, entered by Austin Hendy on 16.10.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropoda and bivalvia. NOMENCLATURE: An authoratative publication, although somewhat antiquated. However, all occurrences include species-resolution assignments and subgeneric classification.
Bivalvia
 Arcida - Arcidae
"Arca (Cunearca) nux" = Anadara nux, "Arca (Argina) brevifrons" = Lunarca brevifrons
"Arca (Cunearca) nux" = Anadara nux Sowerby I 1833 ark
"Arca (Argina) brevifrons" = Lunarca brevifrons Sowerby I 1833 ark
 Cardiida - Veneridae
"Chione (Lirophora) kelletti" = Lirophora, "Pitar (Lamelliconcha) anona n. sp." = Lamelliconcha anona
"Chione (Lirophora) kelletti" = Lirophora venus clam
"Pitar (Lamelliconcha) anona n. sp." = Lamelliconcha anona Olsson 1942 venus clam
 Cardiida - Cardiidae
"Cardium (Trigoniocardia) obovale" = Apiocardia obovale
"Cardium (Trigoniocardia) obovale" = Apiocardia obovale Sowerby 1833 cockle
 Thraciida - Periplomatidae
"Periploma planiuscula" = Periploma (Periploma) planiuscula
"Periploma planiuscula" = Periploma (Periploma) planiuscula Sowerby I 1834 clam
 Lucinida - Lucinidae
 Nuculida - Nuculidae
"Nucula iphigenia" = Nucula (Lamellinucula) iphigenia
"Nucula iphigenia" = Nucula (Lamellinucula) iphigenia Dall 1896 nut clam
SUBSPECIES: N. iphigenia azulensis
Gastropoda
 Neogastropoda - Columbellidae
"Strombina ecuadoriana" = Strombina (Sinuina) ecuadoriana
"Strombina ecuadoriana" = Strombina (Sinuina) ecuadoriana Pilsbry and Olsson 1941 snail
 Neogastropoda - Buccinidae
Strombinophos loripanus Pilsbry and Olsson 1941 true whelk
Metula pilsbryi n. sp. true whelk
"Phos (Antillophos) rutschi" = Antillophos (Antillophos) rutschi Olsson 1942 true whelk
 Neogastropoda - Nassariidae
"Nassa (Arcularia) puntablancoensis" = Nassarius (Arcularia)
"Nassa (Arcularia) puntablancoensis" = Nassarius (Arcularia) snail
 Neogastropoda - Conidae
Conus arcuatus Sowerby 1829 cone shell
SUBSPECIES: C. arcuatus vacuanus
 Neogastropoda - Pseudomelatomidae
"Clathrodrillia (Buridrillia) panarica n. sp." = Buridrillia panarica
"Clathrodrillia (Buridrillia) panarica n. sp." = Buridrillia panarica Olsson 1942 snail
 Neogastropoda - Terebridae
"Terebra (Strioterebrum) guanabana n. sp." = Strioterebrum guanabana, "Terebra (Strioterebrum) aspera" = Terebra (Myurella) aspera, Terebra (Terebra) elena
"Terebra (Strioterebrum) guanabana n. sp." = Strioterebrum guanabana Olsson 1942 auger snail
"Terebra (Strioterebrum) aspera" = Terebra (Myurella) aspera Hinds 1843 auger snail
Terebra (Terebra) elena Pilsbry and Olsson 1941 auger snail
 Tonnoidea - Bursidae
"Bursa nana" = Marsupina nana
"Bursa nana" = Marsupina nana Broderip and Sowerby 1829 frog shell
SUBSPECIES: B. nana jamanensis
 Sorbeoconcha - Turritellidae
Turritella tigrina turret shell