STRI Loc. 290816 - Road to Siapana [middle Jimol Fm] (Miocene of Colombia)

Also known as STRI Sample 38104; AH140118; AH140119; DDS006

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• coordinate based on unpublished field data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: middle 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 unconformably 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 103 m below the Jimol/Castilletes contact.

• bed-level stratigraphic resolution

Environment/lithology: coastal; unlithified siltstone

• ENVIRONMENT: Shallow marine (10-50 m), siliciclastic.
• SPECIFIC LITHOLOGY: Unconsolidated 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 2014

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

• COLLECTOR: A. Hendy, 01/20/2014. 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 156334: authorized by Austin Hendy, entered by Austin Hendy on 19.05.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for mollusca. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications.
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758 tusk shell
Bivalvia
 Arcida - Glycymerididae
Tucetona democraciana Hodson et al. 1927 clam
 Arcida - Arcidae
 Ostreida - Ostreidae
Dendostrea sp. Swainson 1835 oyster
 Pectinida - Pectinoidae
Leopecten sp. Masuda 1971 scallop
Argopecten sp. Monterosato 1889 calico scallop
or Lindapecten sp.
 Carditida - Crassatellidae
Eucrassatella venezuelana Hodson 1927 clam
 Carditida - Carditidae
Glyptoactis paraguanensis Hodson 1931 clam
 Cardiida - Cardiidae
"Apiocardia sp." = Trigoniocardia (Apiocardia) Olsson 1961 cockle
 Cardiida - Veneridae
Gouldia sp. Adams 1847 venus clam
Macrocallista cf. maculata Linnaeus 1758 venus clam
 Cardiida - Chamidae
Arcinella yaquensis Maury 1917 jewel box
Chama berjadinensis Hodson 1927 jewel box
Gastropoda
 Cerithioidea - Turritellidae
Turritella cocoditana Hodson 1926 turret shell