STRI Loc. 290662 - Bahia Tucacas [upper Castilletes Fm] (Miocene of Colombia)

Also known as STRI Sample 37819

Where: La Guajira, Colombia (11.9° N, 71.3° W: paleocoordinates 11.3° N, 68.6° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: upper Castilletes Member (Castilletes Formation), Langhian (16.0 - 13.8 Ma)

• STRATIGRAPHIC RELATIONS: From the Castilletes Formation, which conformably overlies the Jimol Formation (early Miocene) and is unconformably overlain by the Ware Formation. AGE: Langhian, on the basis of macrofaunal composition and stratigraphic position; direct age established by extrapolation of Sr-isotope dating by enterer. STRATIGRAPHIC POSITION: Likely in upper part of the Castilletes Fm; from 319 m above Jimol/Castilletes contact.

• bed-level stratigraphic resolution

Environment/lithology: lagoonal; unlithified, shelly/skeletal sandstone

• ENVIRONMENT: Shallow marine (0-15 m), siliciclastic, probably normal salinity.
• SPECIFIC LITHOLOGY: Unconsolidated shell bed, sandy 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 2013

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

• COLLECTOR: A. Hendy, 01/22/2013. 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 156682: authorized by Austin Hendy, entered by Austin Hendy on 28.05.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: List includes characteristic molluscs. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications.
 Arcida - Arcidae
 Arcida - Glycymerididae
Tucetona democraciana Hodson et al. 1927 clam
 Ostreida - Ostreidae
Crassostrea sp. Sacco 1897 oyster
 Carditida - Crassatellidae
 Cardiida - Veneridae
"Dosinia delicatissima" = Dosinia (Dosinia) delicatissima, Gouldia sp.
"Dosinia delicatissima" = Dosinia (Dosinia) delicatissima Brown and Pilsbry 1913 venus clam
Gouldia sp. Adams 1847 venus clam
 Lucinida - Lucinidae
Lucinisca mirandana Hodson 1931 clam
 Protobranchia - Nuculanidae
"Politoleda forcati" = Nuculana (Politoleda)
"Politoleda forcati" = Nuculana (Politoleda) pointed nut clam
 Naticoidea - Naticidae
 Calyptraeoidea - Calyptraeidae
Calyptraea centralis Conrad 1841 slipper shell
 Sorbeoconcha - Turritellidae
Turritella machapoorensis Maury 1925 turret shell
Turritella (Bactrospira) cf. altilira Conrad 1857 turret shell
Turritella cocoditana Hodson 1926 turret shell
Turritella matarucana Hodson 1926 turret shell