STRI Loc. 290840 - Yotoyoro [middle Castilletes Fm] (Miocene of Colombia)

Where: La Guajira, Colombia (11.9° N, 71.3° W: paleocoordinates 11.3° N, 68.6° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: middle Castilletes Member (Castilletes Formation), Langhian (16.0 - 13.8 Ma)

• STRATIGRAPHIC RELATIONS: From the Castilletes Formation, which conformably overlies the Jimol Formation (early Miocene) and is unconformably overlain by the Ware Formation. AGE: Langhian, on the basis of macrofaunal composition; direct age established by extrapolation of Sr-isotope dating by enterer. STRATIGRAPHIC POSITION: From middle member of Castilletes Fm; from 138 m above Jimol/Castilletes contact.

• bed-level stratigraphic resolution

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

• ENVIRONMENT: Very shallow marine (0-15 m), siliciclastic.
• SPECIFIC LITHOLOGY: Unconsolidated siltstone 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, 01/24/2014. REPOSITORY: Field observations and specimens reposited at Universidad del Norte, Colombia.

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 156551: authorized by Austin Hendy, entered by Austin Hendy on 24.05.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for mollusca, but microfossils were also collected. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications.
Bivalvia
 Arcida - Arcidae
 Arcida - Glycymerididae
Tucetona democraciana Hodson et al. 1927 clam
 Carditida - Carditidae
Glyptoactis paraguanensis Hodson 1931 clam
 Pholadida - Corbulidae
Caryocorbula fortis Jung 1965 clam
Gastropoda
 Neogastropoda - Olivellidae
Agaronia sp. Gray 1839 snail
 Neogastropoda - Melongenidae
Melongena consors Sowerby 1850 snail
 Neogastropoda - Muricidae
Chicoreus (Triplex) cornurectus Guppy 1876 murex snail
 Naticoidea - Naticidae
 Cypraeoidea - Cypraeidae
Muracypraea aff. hyaena Schilder 1939 cowry
 Sorbeoconcha - Potamididae
Potamides suprasulcatus Gabb 1873 horn snail
 Sorbeoconcha - Turritellidae
Turritella machapoorensis Maury 1925 turret shell
SUBSPECIES: Turritella machapoorensis paraguanensis
Turritella matarucana Hodson 1926 turret shell
 Architectonicoidea - Architectonicidae
Architectonica nobilis Röding 1798 sundial