STRI Loc. 290674 - Braincase [lower Castilletes Fm] (Miocene of Colombia)

Also known as STRI Sample 37822

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• coordinate based on unpublished field data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. 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: Probably from lower Castilletes Formation, in lower (Patajau - informal) member; from 28 m above the Jimol/Castilletes contact.

• bed-level stratigraphic resolution

Environment/lithology: lagoonal; lithified, shelly/skeletal, gray siltstone

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

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

• COLLECTOR: A. Hendy, 01/22/2013. REPOSITORY: Field observations, not collected.

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 156700: authorized by Austin Hendy, entered by Austin Hendy on 28.05.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to characteristic molluscs. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications.
Gastropoda
 Cerithioidea - Potamididae
Potamides suprasulcatus Gabb 1873 horn snail
 Cerithioidea - Turritellidae
Turritella matarucana Hodson 1926 turret shell
Turritella cocoditana Hodson 1926 turret shell
 Neogastropoda - Melongenidae
Melongena consors Sowerby 1850 snail
 Neogastropoda - Muricidae
Eupleura kugleri Jung 1965 murex snail
Cymia cocoditana Hodson 1931 murex snail
Bivalvia
 Pholadida - Corbulidae
Caryocorbula fortis Jung 1965 clam
 Cardiida - Veneridae
"Chionopsis paraguanensis" = Chione (Chionopsis) tegulum, Gouldia sp.
"Chionopsis paraguanensis" = Chione (Chionopsis) tegulum Brown and Pilsbry 1911 venus clam
Gouldia sp. Adams 1847 venus clam
 Cardiida - Tellinidae
Angulus sp. Megerle 1811 tellin clam
 Lucinida - Lucinidae
Anodontia sp. Link 1807 clam
Phacoides sp. Blainville 1825 clam
 Arcida - Arcidae
Paraleptopecten quirosensis
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