Station L493 [Futuna Limestone] (Miocene of Fiji)

Where: Fiji (18.2° S, 178.8° E: paleocoordinates 18.2° S, 178.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Futuna Limestone Formation, Middle Miocene (16.0 - 11.6 Ma)

• STRATIGRAPHIC RELATIONS: From Futuna Limestone, which overlies the Lau volcanics (?Early-Middle Miocene), and are overlain by the Koro Mbasanga volcanics (?Late Miocene). AGE: Lower Miocene according to Ladd (1945), and stage "f" of Van der Vlerk. Ladd's age is based on lyellian percentages so should be treated with caution. Lad (1966, 1972, 1977, 1982) appear to suggest a Middle Miocene age, which is adopted here. STRATIGRAPHIC POSITION: Unknown position within unit.

• bed-level stratigraphic resolution

Environment/lithology: lithified, tuffaceous limestone

• ENVIRONMENT: Unknown environment, though presumably shallow water carbonate.
• SPECIFIC LITHOLOGY: Tuffaceous limestone. LITHIFICATION: Presumed lithified, as stated to be limestone, hill capping, and with limited diversity.

Size class: macrofossils

Collection methods: COLLECTOR: H.S. Ladd and E.J. Hoffmeister, presumably with others. REPOSITORY: Unknown, possibly the Bernice P. Bishop Museum, Honolulu, Hawaii, or the USNM.

Primary reference: H. S. Ladd and J. E. Hoffmeister. 1945. Geology of Lau, Fiji. Bernice P. Bishop Museum Bulletin 181 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 68296: authorized by Austin Hendy, entered by Austin Hendy on 14.01.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• COMPLETENESS: Exhaustive for echinoidea, gastropoda, bivalvia, bryozoa, brachiopoda, and decapoda. NOMENCLATURE: Authoritative publication, although somewhat antiquated. Regular use of subgenera and species level identifications. Nomenclature vetted by A. Hendy (1/2007).
Gymnolaemata
 Cheilostomata - Phidoloporidae
"Retepora "sp. B"" = Reteporella
"Retepora "sp. B"" = Reteporella Busk 1884
Bivalvia
 Ostreida - Ostreidae
"Ostrea (Lopha) "sp. A"" = Lopha, "Ostrea (Lopha) cristagalli" = Lopha cristagalli
"Ostrea (Lopha) "sp. A"" = Lopha Röding 1798 oyster
"Ostrea (Lopha) cristagalli" = Lopha cristagalli Linnaeus 1758 Cock's Comb Oyster
 Pectinida - Pectinoidae
Spondylus sp. Linnaeus 1758 scallop
"Pecten (Chlamys) nausorensis" = Chlamys scallop
 Arcida - Glycymerididae
Gastropoda
 Neogastropoda - Olividae
Oliva woolnoughi olive snail
SUBSPECIES: O. woolnoughi lauensis
Echinoidea
 Cidaroida - Cidaridae
Phyllacanthus imperialis Lamarck 1816 pencil urchin
 Clypeasteroida - Laganidae
Laganum depressum Agassiz 1841 sand dollar
 Camarodonta - Echinometridae
Heterocentrotus sp. Brandt 1835 sea urchin