Also known as USGS 23648

Where: Colon, Panama (9.4° N, 79.9° W: paleocoordinates 6.9° N, 77.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Gatuncillo Formation, Late/Upper Eocene (37.2 - 33.9 Ma)

• Leached soft sandstone. Exposures within the Rio Agua Suica b asin expose mudstone, siltstone, and sandstone. Mudstone and sandstone are more prevelant in the southeastern part of rte basin, sandstone in the northwestern part. Sandstone is medium-grained, poorly sorted, and contains much carboniferous debris. Limestone is not common, although algal and foraminiferal limestone is present.

• bed-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified sandstone

Size class: macrofossils

Reposited in the USNM

Collection methods: quarrying,

• Collected by Stewart (1968). Material is also held (but not specified for any specific collection) at Stanford University, Acad. Nat. Sci. Phil., Corenell University, PRI, U. Cal. and Cal. Acad. Sci.

Primary reference: W. P. Woodring. 1957. Geology and Paleontology of Canal Zone and adjoining parts of Panama. United States Geological Survey Professional Paper 306(A) [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 49498: authorized by Austin Hendy, entered by Austin Hendy on 18.04.2005

Creative Commons license: CC BY (attribution)