PPP# 453 - Río Sand Box [Rio Banano Fm] (Pliocene of Costa Rica)

Also known as NMB Loc. 17776

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 79801: 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.
unclassified
  -
Gastropoda
 Neogastropoda - Olividae
Oliva (Oliva) sp. Bruguière 1789 olive snail
Olivella (Macgintiella) sp. Olsson 1956 olive snail
 Neogastropoda - Marginellidae
Prunum sp. Swainson 1840 margin shell
 Neogastropoda - Buccinidae
Strombinophos sp. Pilsbry and Olsson 1941 true whelk
Antillophos (Antillophos) sp. Woodring 1928 true whelk
 Neogastropoda - Nassariidae
Nassarius sp. Duméril 1806 snail
sensu lato
 Neogastropoda - Turridae
Polystira sp. Woodring 1928 turrid
 Neogastropoda - Conidae
Conus sp. Linnaeus 1758 cone shell
 Sorbeoconcha - Tonnidae
Malea sp. Valenciennes 1833 tun shell
 Sorbeoconcha - Naticidae
Natica sp. Scopoli 1777 moon snail
Bivalvia
 Nuculida - Nuculidae
Nucula (Nucula) sp. Lamarck 1799 nut clam
 Carditida - Crassatellidae
 Pholadida - Corbulidae
Caryocorbula sp. Gardner 1926 clam
 Cardiida - Veneridae
Lirophora sp. Conrad 1863 venus clam
 Cardiida - Cardiidae
"Lophocardium sp." = Nemocardium (Lophocardium)
"Lophocardium sp." = Nemocardium (Lophocardium) Fischer 1887 cockle