Charco Azul [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 equador.

• 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 66790: 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
 Pectinida - Pectinoidae
"Pseudamusium terryi n. sp." = Delectopecten terryi
"Pseudamusium terryi n. sp." = Delectopecten terryi Olsson 1942 scallop
 Arcida - Arcidae
"Scapharca charcoazulensis n. sp." = Anadara (Rasia) charcoazulensis
"Scapharca charcoazulensis n. sp." = Anadara (Rasia) charcoazulensis Olsson 1942 ark
 Cardiida - Psammobiidae
 Cardiida - Tellinidae
"Macoma (Panacoma) chiriquiensis n. sp." = Panacoma chiriquiensis
"Macoma (Panacoma) chiriquiensis n. sp." = Panacoma chiriquiensis Olsson 1942 tellin clam
 Pholadida - Corbulidae
"Corbula (Varicorbula) granti n. sp." = Varicorbula granti
"Corbula (Varicorbula) granti n. sp." = Varicorbula granti Olsson 1942 clam
 Lucinida - Lucinidae
"Lucina (Lucinoma) chiripanica n. sp." = Lucinoma chiripanica
"Lucina (Lucinoma) chiripanica n. sp." = Lucinoma chiripanica Olsson 1942 clam
 Nuculida - Nuculidae
"Nucula iphigenia" = Nucula (Lamellinucula) iphigenia
"Nucula iphigenia" = Nucula (Lamellinucula) iphigenia Dall 1896 nut clam
SUBSPECIES: N. iphigenia azulensis
 Nuculanida - Nuculanidae
Yoldia (Orthoyoldia) quiba, "Nuculana (Jupiteria) chiriquiana n. sp." = Saccella chiriquiana, "Nuculana (Jupiteria) davidana n. sp." = Saccella davidana
Yoldia (Orthoyoldia) quiba Olsson 1942 pointed nut clam
"Nuculana (Jupiteria) chiriquiana n. sp." = Saccella chiriquiana Olsson 1942 pointed nut clam
"Nuculana (Jupiteria) davidana n. sp." = Saccella davidana Olsson 1942 pointed nut clam
Gastropoda
 Pseudomelanoidea - Pseudomelaniidae
Leucosyrinx nicoya n. sp. Olsson 1942 snail
 Sorbeoconcha - Naticidae
Natica scethra Dall 1908 moon snail
SUBSPECIES: N. scethra bruica
 Neogastropoda - Harpidae
Harpa sp. Röding 1798 snail
 Neogastropoda - Cancellariidae
Cancellaria (Cancellaria) penita n. sp. Olsson 1942 snail
 Neogastropoda - Costellariidae
Fusiturricula woodringi n. sp. ribbed mitre
 Neogastropoda - Nassariidae
"Nassa (Uzita) armuella n. sp." = Nassarius (Uzita) armuella, "Nassa (Uzita) terryi n. sp." = Nassarius (Uzita) terryi
"Nassa (Uzita) armuella n. sp." = Nassarius (Uzita) armuella Olsson 1942 snail
"Nassa (Uzita) terryi n. sp." = Nassarius (Uzita) terryi Olsson 1942 snail
 Neogastropoda - Columbellidae
"Strombina (Cotonopsis) sp." = Cotonopsis Olsson 1942 snail
Sincola (Sinuina) ecuadoriana2 Pilsbry and Olsson 1941 snail
Strombina (Recurvina) recurva2 Sowerby 1832 snail
Strombina (Recurvina) penita2 Olsson 1942 snail
 Neogastropoda - Buccinidae
Metula sp. Adams and Adams 1853 true whelk
Strombinophos loripanus Pilsbry and Olsson 1941 true whelk
 Neogastropoda - Borsoniidae
Borsonella adamsi n. sp. snail
Borsonella harrisi n. sp. snail
 Neogastropoda - Pseudomelatomidae
"Clathrodrillia (Buridrillia) panarica n. sp." = Buridrillia panarica
"Clathrodrillia (Buridrillia) panarica n. sp." = Buridrillia panarica Olsson 1942 snail
 Neogastropoda - Cochlespiridae
"Ancistrosyrinx cedonulli" = Cochlespira (Ancistrosyrinx) cedonulli
"Ancistrosyrinx cedonulli" = Cochlespira (Ancistrosyrinx) cedonulli Reeve 1843 snail
SUBSPECIES: A. cedinoulli reevei
 Neogastropoda - Turridae
Polystira panamensis n. sp., "Pleurotomella (Phymorhynchus) agina n. sp." = Dallora agina
Polystira panamensis n. sp. turrid
"Pleurotomella (Phymorhynchus) agina n. sp." = Dallora agina Olsson 1942 turrid
 Sorbeoconcha - Cassidae
Semicassis centiquadrata1 Valenciennes 1832 snail
 Epitonioidea - Epitoniidae
"Epitonium (Ferminiscala) ferminianum" = Scalina ferminiana
"Epitonium (Ferminiscala) ferminianum" = Scalina ferminiana Dall 1908 wentletrap