STRI Loc. 290476 [bulk] - Paraguachon [upper Jimol Fm] (Miocene of Colombia)

Also known as STRI Sample 16893

Where: La Guajira, Colombia (11.9° N, 71.4° W: paleocoordinates 11.2° N, 68.1° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: upper Jimol Member (Jimol Formation), Burdigalian (20.4 - 16.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Jimol Formation, which conformably overlies the Uipta Formation (early Miocene) and is conformably overlain by the Castilletes Formation. This area and nearby collections have been previously mapped as Castilletes Formaton (late Pliocene-early Pleistocene). AGE: Burdigalian, on the basis of macrofaunal composition; direct age established by extrapolation of Sr-isotope dating by enterer. STRATIGRAPHIC POSITION: From 42 m below Jimol/Castilletes contact.

• bed-level stratigraphic resolution

Environment/lithology: marine; unlithified siltstone

• SPECIFIC LITHOLOGY: Unconsolidated silty matrix. LITHIFICATION: Unlithified, as determined in the field and based on museum-reposited specimens.

Size classes: macrofossils, mesofossils

Preservation: original aragonite, original calcite

Collected by Hendy in 2011

Collection methods: bulk, sieve,

• COLLECTOR: A. Hendy, 03/16/2011. REPOSITORY: Presently reposited at FLMNH, Gainesville.

Primary reference: A. J. W. Hendy, D. S. Jones, F. Moreno, V. Zapata, and C. Jaramillo. 2015. Neogene molluscs, shallow marine paleoenvironments, and chronostratigraphy of the Guajira Peninsula, Colombia. Swiss Journal of Palaeontology 134(1):45-75 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 136886: authorized by Austin Hendy, entered by Austin Hendy on 05.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for mollusca. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications.
Bivalvia
 Arcida - Arcidae
 Ostreida - Ostreidae
Crassostrea sp. Sacco 1897 oyster
 Pholadida - Corbulidae
Caryocorbula fortis Jung 1965 clam
 Cardiida - Veneridae
Gouldia sp. Adams 1847 venus clam
 Cardiida - Donacidae
Donax sp. Linnaeus 1758 clam
 Protobranchia - Nuculanidae
"Politoleda forcati" = Nuculana (Politoleda)
"Politoleda forcati" = Nuculana (Politoleda) pointed nut clam
Gastropoda
 Neogastropoda - Columbellidae
Anachis sp. Adams and Adams 1853 snail
 Neogastropoda - Melongenidae
Melongena consors Sowerby 1850 snail
 Neogastropoda - Muricidae
Eupleura kugleri Jung 1965 murex snail
Cymia cocoditana Hodson 1931 murex snail
 Naticoidea - Naticidae
 Sorbeoconcha - Potamididae
Potamides suprasulcatus Gabb 1873 horn snail
 Sorbeoconcha - Thiaridae
Aylacostoma sp. Spix and von Wagner 1827 snail
 Sorbeoconcha - Turritellidae
Turritella cocoditana Hodson 1926 turret shell
Turritella matarucana Hodson 1926 turret shell