PPP# 454 - Río Sand Box [Rio Banano Fm] (Pliocene of Costa Rica)

Also known as NMB Loc. 17777

Where: Limon, Costa Rica (9.6° N, 82.8° W: paleocoordinates 9.5° N, 82.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Rio Banano Formation (Limon Group), Piacenzian (3.6 - 2.6 Ma)

• 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).

• bed-level stratigraphic resolution

Environment/lithology: marine; gray, calcareous claystone

• Friable gray claystone, rich in montmorillonite with minor limestone and calcareous sandstone and a thickness between 600 and 1500m. Contains a lower black shale and upper gray shales separated by a "Dentalium Zone"

Size class: macrofossils

Collected by Jung & Panchaud in 1988; reposited in the NMB

Collection methods: bulk, sieve,

• COLLECTORS: Peter Jung & R. Panchaud, 28.3.1988. REPOSITORIES:collections presumably held at USNM, BMNH and Naturhistorisches Museum Basel (NMB),

Primary reference: L. S. Collins and A. G. Coates. 1999. A paleobiotic survey of Caribbean faunas from the Neogene of the Isthmus of Panama. Bulletins of American Paleontology (357) [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 79802: authorized by Arnold Miller, entered by Kate Bulinski on 24.03.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropoda, bivalvia and scaphopoda. NOMENCLATURE: modern nomenclature, though only identified to subgenus resolution.
Gastropoda
 Neogastropoda - Olividae
Olivella (Macgintiella) sp. Olsson 1956 olive snail
 Neogastropoda - Buccinidae
Strombinophos sp. Pilsbry and Olsson 1941 true whelk
 Neogastropoda - Columbellidae
Strombina (? Strombina) sp. Mörch 1852 snail
Strombinella sp. Dall 1896 snail
"Costoanachis sp." = Anachis (Costoanachis) Sacco 1890 snail
 Neogastropoda - Pseudomelatomidae
? Buridrillia sp. Olsson 1942 snail
 Neogastropoda - Turridae
Polystira sp. Woodring 1928 turrid
 Neogastropoda - Marginellidae
Prunum sp. Swainson 1840 margin shell
 Neogastropoda - Volutidae
Voluta sp. Linnaeaus 1758 volute
 Neogastropoda - Cancellariidae
Cancellaria sp. Lamarck 1799 snail
sensu lato
 Sorbeoconcha - Cassidae
Sconsia sp. Gray 1847 snail
 Sorbeoconcha - Naticidae
Natica sp. Scopoli 1777 moon snail
 Opisthobranchia - Retusidae
Volvulella (Volvulella) sp. Newton 1891 snail
Bivalvia
 Pectinida - Anomiidae
Anomia sp. Linnaeus 1758 jingle
 Pholadida - Corbulidae
Caryocorbula sp. Gardner 1926 clam
 Nuculida - Nuculidae
Acila sp. Adams and Adams 1858 divaricate nutclam
Scaphopoda
 Gadilida - Gadilidae
Cadulus sp. Philippi 1844 tusk shell
 Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758 tusk shell
sensu lato