ammonites
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)