STRI Loc. 290819 (Quadrat B) - Near Huaina [middle 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• coordinate based on unpublished field data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: 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 immediately (<1 m) above STRI 290820; From 118 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. ABUNDANCE: Estimate based on relative abundance within a 25cm2 quadrat; A=abundant (10 or more specimens per quadrat; C=common (3-9 specimens per quadrat; R=rare (1-2 specimens per quadrate).

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 160815: authorized by Austin Hendy, entered by Austin Hendy on 28.08.2014

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
Gastropoda
 Cerithioidea - Turritellidae
Turritella cocoditana Hodson 1926 turret shell
 Neotaenioglossa - Calyptraeidae
Crucibulum (Dispotaea) sp. Say 1824 slipper shell
 Sorbeoconcha - Cypraeidae
Muracypraea aff. hyaena Schilder 1939 cowry
 Neogastropoda - Buccinidae
 Neogastropoda - Conidae
Conus bravoi Spieker 1922 cone shell
 Neogastropoda - Turbinellidae
Turbinella falconensis Hodson 1931 snail
 Sorbeoconcha - Naticidae
Bivalvia
 Ostreida - Ostreidae
Dendostrea sp. Swainson 1835 oyster
 Pectinida - Pectinoidae
Lindapecten buchivacoanus Hodson et al. 1927 scallop
 Arcida - Glycymerididae
Tucetona democraciana Hodson et al. 1927 clam
 Cardiida - Veneridae
Macrocallista cf. maculata Linnaeus 1758 venus clam
 Cardiida - Cardiidae
"Apiocardia sp." = Trigoniocardia (Apiocardia)
"Apiocardia sp." = Trigoniocardia (Apiocardia) Olsson 1961 cockle
 Carditida - Crassatellidae
 Carditida - Carditidae
Glyptoactis paraguanensis Hodson 1931 clam