STRI Loc. 290412 - Aulechit-Castilletes Rd [upper Jimol Fm] (Miocene of Colombia)

Also known as STRI Sample 16842, 16844, 17041

Where: La Guajira, Colombia (12.0° N, 71.4° W: paleocoordinates 11.2° N, 68.1° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: lower 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: Probably from the lower section of Jimol Formation, immediately above Shirrua type section; 152 m below Jimol-Castilletes Fm contact.

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; poorly lithified, medium-grained, shelly/skeletal sandstone

• ENVIRONMENT: Shallow sub tidal siliciclastic setting, normal salinity; 5-30 m.
• SPECIFIC LITHOLOGY: Poorly consolidated rusty medium matrix. LITHIFICATION: Poorly lithified, as determined in the field and based on museum-reposited specimens.

Size classes: macrofossils, mesofossils

Preservation: original calcite, replaced with calcite

Collected by Hendy in 2011

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

• COLLECTOR: A. Hendy, 03/06/2011. 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 156751: authorized by Austin Hendy, entered by Austin Hendy on 30.05.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Comprises characteristic molluscs. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications.
 Sessilia - Balanidae
Balanidae indet. Leach 1817 barnacle
 Arcida - Arcidae
 Arcida - Glycymerididae
Tucetona democraciana Hodson et al. 1927 clam
 Pectinida - Pectinoidae
Lindapecten buchivacoanus Hodson et al. 1927 scallop
 Carditida - Crassatellidae
 Carditida - Carditidae
Glyptoactis paraguanensis Hodson 1931 clam
 Cardiida - Veneridae
"Dosinia delicatissima" = Dosinia (Dosinia) delicatissima Brown and Pilsbry 1913 venus clam
Gouldia sp. Adams 1847 venus clam
Macrocallista cf. maculata Linnaeus 1758 venus clam
Clementia (Clementia) dariena Conrad 1855 venus clam
"Cyclinella venezuelana" = Cyclinella cyclica Guppy 1866 venus clam
 Cardiida - Tellinidae
Psammotreta hadra Woodring 1982 tellin clam
 Cardiida - Cardiidae
 Neogastropoda -
Eburna sp. Lamarck 1801 snail
 Neogastropoda - Buccinidae
 Neogastropoda - Melongenidae
Melongena consors Sowerby 1850 snail
 Neogastropoda - Turbinellidae
Turbinella falconensis Hodson 1931 snail
 Neogastropoda - Muricidae
Muricidae indet. Rafinesque 1815 murex snail
 Neogastropoda - Conidae
Conus molis Brown and Pilsbry 1911 cone shell
 Stromboidea - Thersiteidae
Orthaulax sp. Gabb 1872 snail
 Ficoidea - Ficidae
Ficus carbasea Guppy 1866 fig shell
 Naticoidea - Naticidae
 Cypraeoidea - Cypraeidae
Luria sp. Jousseaume 1884 cowry
Muracypraea aff. hyaena Schilder 1939 cowry
 Sorbeoconcha - Turritellidae
Turritella matarucana Hodson 1926 turret shell