STRI Loc. 290600 - Shirrua [Uipta Fm] (Miocene of Colombia)

Where: La Guajira, Colombia (12.0° N, 71.4° W: paleocoordinates 11.2° N, 68.1° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Uipta Formation, Burdigalian (20.4 - 16.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Uipta Formation, which unconformably overlies the Siamana Formation (late Oligocene-early Miocene) and is conformably overlain by the Jimol Formation (early-middle Miocene). AGE: Burdigalian, on the basis of stratigraphic position and constrained by Sr-isotope dating of enterer; while the formation is probably Aquitanian-Burdigalian, the collection is placed in the Burdigalian on the basis of stratigraphic position. STRATIGRAPHIC POSITION: From the uppermost part of Uipta Fm, not far below above base of Jimol Formation.

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; poorly lithified mudstone

• ENVIRONMENT: Offshore fauna.
• SPECIFIC LITHOLOGY: Poorly consolidated muddy matrix. LITHIFICATION: Poorly lithified, as determined in the field.

Size class: macrofossils

Preservation: original aragonite, original calcite

Collected by Hendy in 2013

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

• COLLECTOR: A. Hendy, 01/16/2013. REPOSITORY: Presently 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 157300: authorized by Austin Hendy, entered by Austin Hendy on 11.06.2014

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.
Bivalvia
 Nuculanida - Nuculanidae
Saccella sp. Woodring 1925 pointed nut clam
 Ostreida - Pteriidae
Pteria sp. Scopoli 1777 pearl oyster
 Cardiida - Veneridae
"Chionopsis paraguanensis" = Chione (Chionopsis) tegulum
"Chionopsis paraguanensis" = Chione (Chionopsis) tegulum Brown and Pilsbry 1911 venus clam
 Cardiida - Tellinidae
"Psammacoma sp." = Macoma (Psammacoma)
"Psammacoma sp." = Macoma (Psammacoma) Dall 1900 tellin clam
Gastropoda
 Neogastropoda - Fasciolariidae
Fasciolaria sp. Lamarck 1799 tulip snail
 Sorbeoconcha - Naticidae
 Heterostropha - Architectonicidae
Architectonica nobilis Röding 1798 sundial