STRI Loc. 290436 - Paráuachon [lower Castilletes Fm] (Miocene of Colombia)

Also known as STRI Sample 16882

Where: La Guajira, Colombia (11.9° N, 71.4° W: paleocoordinates 11.1° N, 68.1° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: lower Castilletes Member (Castilletes Formation), Burdigalian (20.4 - 16.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Castilletes Formation, which conformably overlies the Jimol Formation (early Miocene) and is unconformably overlain by the Ware Formation. AGE: Burdigalian-Langhian, on the basis of macrofaunal composition and stratigraphic position; direct age established by extrapolation of Sr-isotope dating by enterer. STRATIGRAPHIC POSITION: From lower part of the Castilletes Fm; at base of Jimol/Castilletes contact.

• bed-level stratigraphic resolution

Environment/lithology: lagoonal; poorly lithified, gypsiferous, shelly/skeletal siltstone

• ENVIRONMENT: Shallow marine (0-5 m), siliciclastic, probably reduced salinity.
• SPECIFIC LITHOLOGY: Poorly consolidated shell bed, silty matrix, gypsiferous. LITHIFICATION: Poorly lithified, as determined in the field and based on museum-reposited specimens.

Size classes: macrofossils, mesofossils

Preservation: original aragonite

Collected by Hendy in 2011

Collection methods: surface (float), surface (in situ),

• COLLECTOR: A. Hendy, 03/15/2011. 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 158101: authorized by Austin Hendy, entered by Austin Hendy on 14.07.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications.
Gastropoda
 Neogastropoda - Marginellidae
Prunum quirosense Hodson 1927 margin shell
 Neogastropoda - Muricidae
Cymia cocoditana Hodson 1931 murex snail
Eupleura kugleri Jung 1965 murex snail
 Sorbeoconcha - Naticidae
 Cerithioidea - Turritellidae
Turritella matarucana Hodson 1926 turret shell
Turritella cocoditana Hodson 1926 turret shell
 Cerithioidea - Potamididae
Potamides suprasulcatus Gabb 1873 horn snail
Bivalvia
 Nuculanida - Nuculanidae
"Politoleda forcati" = Nuculana (Politoleda)
"Politoleda forcati" = Nuculana (Politoleda) pointed nut clam
 Cardiida - Veneridae
Chione sp. von Mühlfield 1811 venus clam
Lamelliconcha sp. Dall 1902 venus clam
 Cardiida - Donacidae
Donax sp. Linnaeus 1758 clam
 Arcida - Arcidae