Where: Limon, Costa Rica (9.9° N, 83.1° W: paleocoordinates 9.8° N, 82.5° W)
• coordinate estimated from map
When: Rio Banano Formation, Early/Lower Pliocene (5.3 - 3.6 Ma)
• Underlying Formation: Unknown. Overlying Formation: Quebrada Chocolate Formation. Thickness: About 750 m. (Coates et al, 1992; McNeil et al, 2000).
Environment/lithology: coastal; tuffaceous siltstone and medium-grained, gray, blue sandstone
• Cassell 1986 mentions that the “Rio Banano sandstones were deposited on the inner continental shelf at a depth of about 10 to 20 meters. Nearshore sediment was carried out to the shelf area and redeposited.” This sentiment is echoed by multiple authors, including Denyer 1998; Coates et al, 1992; and McNeil et al, 2000. Furthermore, McNeil et al, 2000, mention that this is possibly marine deltaic sandstone. It is cross-bedded, which could indicate a shoreface facies, but since it is also possibly deltaic in nature, then “Coastal Indet.” Is a proper selection.
• The siltstone in this section is clayey, organic-rich, burrow-mottled clayey and tuffaceous, packed with small mollusks and shell hash. The sandstone in the middle part is blue-gray, organic-rich, and burrow mottled with mollusk infill. The bottom is a sandstone of medium sand, blue-gray, some silt, abundant burrows, has small volcanic pebbles, mollusk hash infill burrows, and irregular large nodular concretions. (McNeil et al, 2000).
Size class: macrofossils
Primary reference: J. A. Todd and J. S. H. Collins. 2005. Neogene and Quaternary crabs (Crustacea, Decapoda) collected from Costa Rica and Panama by members of the Panama Paleontology Project. Bulletin of the Mizunami Fossil Museum 32:53-85 [A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 228544: authorized by Joanna Wolfe, entered by Arthur Lynch on 12.12.2022
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Malacostraca |
| Decapoda - Panopeidae |
|