STRI Loc. 290430 [bulk A] - Paráuachon [upper Jimol Fm] (Miocene of Colombia)

Also known as STRI Sample 17090

Where: La Guajira, Colombia (11.9° N, 71.4° W: paleocoordinates 11.2° N, 68.1° 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• coordinate based on unpublished field data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 the upper section of Jimol Formation; same horizon as STRI Loc. 290376; from 42 m below Jimol/Castilletes contact.

• bed-level stratigraphic resolution

Environment/lithology: lagoonal; unlithified, shelly/skeletal siltstone

• ENVIRONMENT: Shallow marine (0-5 m), siliciclastic, probably reduced salinity.
• SPECIFIC LITHOLOGY: Unconsolidated shell bed, 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 2011

Collection methods: bulk, sieve,

• COLLECTOR: A. Hendy, 03/14/2011. REPOSITORY: Presently reposited at Florida Museum of Natural History.

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 157336: authorized by Austin Hendy, entered by Austin Hendy on 12.06.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: List includes characteristic molluscs. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications.
Gastropoda
 Epitonioidea - Epitoniidae
 Neotaenioglossa - Calyptraeidae
Crepidula plana Say 1822 slipper shell
 Cerithioidea - Turritellidae
Turritella matarucana Hodson 1926 turret shell
Turritella cocoditana Hodson 1926 turret shell
 Cerithioidea - Potamididae
Potamides suprasulcatus Gabb 1873 horn snail
Terebralia dentilabris Gabb 1873 horn snail
 Neogastropoda - Olividae
Oliva sp. Bruguière 1789 olive snail
 Neogastropoda - Buccinidae
 Neogastropoda - Melongenidae
Melongena consors Sowerby 1850 snail
 Neogastropoda - Conidae
Conus molis Brown and Pilsbry 1911 cone shell
Conus talis Jung 1965 cone shell
 Neogastropoda - Turridae
Polystira sp. Woodring 1928 turrid
 Neogastropoda - Costellariidae
"Knefastia lavinoides" = Knefastia limonensis
"Knefastia lavinoides" = Knefastia limonensis Olsson 1922 ribbed mitre
 Neogastropoda - Marginellidae
Prunum quirosensis margin shell
 Neogastropoda - Cystiscidae
Persicula venezuelana Hodson et al. 1927 snail
 Neogastropoda - Muricidae
Calotrophon sp. Hertlein and Strong 1951 murex snail
Eupleura kugleri Jung 1965 murex snail
 Neogastropoda - Cancellariidae
Euclia werenfelsi Jung 1965 snail
 Sorbeoconcha - Naticidae
Neverita (Glossaulax) paraguanensis Hodson 1927 moon snail
 Heterostropha - Architectonicidae
Architectonica nobilis Röding 1798 sundial
Bivalvia
 Arcida - Arcidae
 Ostreida - Ostreidae
Crassostrea sp. Sacco 1897 oyster
 Pholadida - Corbulidae
Caryocorbula fortis Jung 1965 clam
 Cardiida - Veneridae
Gouldia sp. Adams 1847 venus clam
 Cardiida - Cardiidae
"Apiocardia sp." = Trigoniocardia (Apiocardia)
"Apiocardia sp." = Trigoniocardia (Apiocardia) Olsson 1961 cockle
 Cardiida - Tellinidae
Eurytellina paraguanensis Hodson 1931 tellin clam
 Carditida - Carditidae
Glyptoactis paraguanensis Hodson 1931 clam
 Carditida - Crassatellidae
 Nuculanida - Nuculanidae
Saccella gracillima Jung 1965 pointed nut clam
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758 tusk shell