STRI Loc. 290421 - Aulechit-Castilletes Rd [upper Jimol Fm] (Miocene of Colombia)

Where: La Guajira, Colombia (11.9° N, 71.4° W: paleocoordinates 11.1° N, 68.1° 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• coordinate based on unpublished field data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 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 middle section of Jimol Formation, but uncertain as from a faulted area; from 113 m below the Jimol/Castilletes contact.

• bed-level stratigraphic resolution

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

• ENVIRONMENT: Shallow sub tidal siliciclastic setting, normal salinity; 5-30 m.
• SPECIFIC LITHOLOGY: Poorly consolidated rusty sand 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, 03/07/2011. 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 156797: authorized by Austin Hendy, entered by Austin Hendy on 31.05.2014

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.
Gastropoda
 Neotaenioglossa - Calyptraeidae
Calyptraea centralis Conrad 1841 slipper shell
 Cerithioidea - Turritellidae
Turritella machapoorensis Maury 1925 turret shell
Turritella matarucana Hodson 1926 turret shell
Turritella cocoditana Hodson 1926 turret shell
 Sorbeoconcha - Strombidae
Strombus sp. Linnaeus 1758 conch
 Sorbeoconcha - Thersiteidae
Orthaulax sp. Gabb 1872 snail
 Neogastropoda - Olividae
Oliva sp. Bruguière 1789 olive snail
 Neogastropoda - Ancillariidae
Eburna sp. Lamarck 1801 snail
 Neogastropoda - Columbellidae
Strombina sp. Mörch 1852 snail
 Neogastropoda - Conidae
Conus molis Brown and Pilsbry 1911 cone shell
Conus cf. chipolanus Dall 1896 cone shell
 Neogastropoda - Muricidae
Cymia cocoditana Hodson 1931 murex snail
 Sorbeoconcha - Ficidae
Ficus carbasea Guppy 1866 fig shell
 Sorbeoconcha - Cypraeidae
Muracypraea aff. hyaena Schilder 1939 cowry
 Sorbeoconcha - Naticidae
Neverita (Glossaulax) paraguanensis Hodson 1927 moon snail
Naticarius sp. Dumeril 1806 moon snail
 Sorbeoconcha - Vermetidae
Petaloconchus sculpturatus Lea 1846 worm shell
Bivalvia
 Arcida - Arcidae
 Arcida - Glycymerididae
Tucetona democraciana Hodson et al. 1927 clam
 Pectinida - Pectinoidae
Lindapecten buchivacoanus Hodson et al. 1927 scallop
Spondylus sp. Linnaeus 1758 scallop
 Ostreida - Ostreidae
Crassostrea sp. Sacco 1897 oyster
 Pholadida - Corbulidae
Caryocorbula fortis Jung 1965 clam
 Cardiida - Veneridae
Gouldia sp. Adams 1847 venus clam
Macrocallista cf. maculata Linnaeus 1758 venus clam
"Dosinia delicatissima" = Dosinia (Dosinia) delicatissima Brown and Pilsbry 1913 venus clam
 Cardiida - Ungulinidae
Diplodonta sp. Bronn 1831 clam
 Cardiida - Cardiidae
 Life -