STRI Loc. 290654A - Patajau [upper Jimol Fm] (Miocene of Colombia)

Where: La Guajira, Colombia (12.0° N, 71.3° W: paleocoordinates 11.2° N, 68.0° 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• coordinate based on unpublished field data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 near the top of the Castilletes Formation, in upper (Paraguachon - informal) member; from 48 m below Jimol/Castilletes contact.

• bed-level stratigraphic resolution

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

• SPECIFIC LITHOLOGY: Poorly consolidated, shelly, silty matrix. LITHIFICATION: Poorly consolidated, 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, 01/21/2013. REPOSITORY: Presently reposited at Universidad del Norte, Colombia.

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 156691: 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.
Echinoidea
 Clypeasteroida - Clypeasteridae
Clypeaster sp. Lamarck 1801 sand dollar
Gastropoda
 Neogastropoda - Conidae
Conus talis Jung 1965 cone shell
 Sorbeoconcha - Cypraeidae
Muracypraea aff. hyaena Schilder 1939 cowry
Bivalvia
 Cardiida - Veneridae
Macrocallista cf. maculata Linnaeus 1758 venus clam
Clementia (Clementia) dariena Conrad 1855 venus clam
 Ostreida - Ostreidae
Crassostrea sp. Sacco 1897 oyster
 Pectinida - Pectinoidae
Argopecten sp. Monterosato 1889 calico scallop