C 14091 (Paleocene of Colombia)

Where: Guajira, Colombia (11.5° N, 72.9° W: paleocoordinates 9.0° N, 58.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Manantial Formation, Danian (66.0 - 61.6 Ma)

• Local unit II Manantial fm. Authors tentatively suggest this is Danian age.

• formation-level stratigraphic resolution

Environment/lithology: prodelta; lithified, shelly/skeletal, muddy, silty sandstone

• "...between the lower tide level and 30 meters of depth. ...Summing up the history of this thin layer and its fauna, it can be interpreted as an accumulation of sediments in an inlet or channel on a marine region, where there was an abrupt increase of depth over a very short period. ... a region indirectly affected by a delta [where many different substrate environments develop in close proximity], like the case of the ‘east Mississippi Delta’, Gulf of Mexico, or the Orinoco Delta.
• Predominately packed biomicrite, although the microfacies vary from site to site, rocks appear as a very fine grained quartz sandstone with echinoderm plates and spines, shells, ostracods bryozoans and ooliths.

Size classes: macrofossils, mesofossils

Preservation: cast, mold/impression

Collected by W. Durham and F. Etayo-Serna in 1944-45 and 1976; reposited in the UCMP

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

• University of California (Berkeley), Museum of Paleontology Locality C-14091, Colombia National University, Natural Sciences Institute, Natural History and Sciences Museum Locality C-14091.

Primary reference: F. Etayo Serna. 1979. La fauna de Moluscos del Paleoceno de Columbia; Moluscos una capa del Paleoceno de Manantial (Guajira). Boleti'n de geologi'a 27:5-55 [J. Sessa/L. Eccles]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 99141: authorized by Jocelyn Sessa, entered by Laurie Eccles on 28.10.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ostreida - Gryphaeidae
"Ostrea (? Turkostrea) renzoni" = Turkostrea
"Ostrea (? Turkostrea) renzoni" = Turkostrea oyster
 Carditida - Carditidae
Baluchicardia sp. Rutsch and Schenck 1943 clam
 Pholadida - Corbulidae
"Corbula (Bicorbula) manantialense" = Bicorbula
"Corbula (Bicorbula) manantialense" = Bicorbula clam
 Ptenoglossa - Epitoniidae
Confusiscala sp. de Boury 1909 wentletrap
 Neogastropoda - Buccinidae
 Neogastropoda - Fasciolariidae
Buccinofusus sp. Conrad 1868 snail
Fusinus sp. Rafinesque 1815 snail
 Neogastropoda - Volutidae
 Neogastropoda - Turridae
Orthosurcula sp. Casey 1904 turrid
Surculites errans Solander 1766 turrid
 Ficoidea - Ficidae
Priscoficus johnstoni, "Fulguroficus hoffstetteri" = Ficopsis (Fulguroficus)
"Fulguroficus hoffstetteri" = Ficopsis (Fulguroficus) fig shell
 Naticoidea - Naticidae
Euspira ottogeyeri moon snail
 Sorbeoconcha - Turritellidae
Woodsalia allisoni turret shell
Turritella sp. Lamarck 1799 turret shell
"Turritella (Torquesia) eliciloides" = Torquesia turret shell
"Turritella (Merriamella) rinconi" = Hataiella (Merriamella) turret shell
 Sorbeoconcha - Pachychilidae
 Heterostropha - Ringiculidae
 Pyramidelloidea - Pyramidellidae
 Architectonicoidea - Architectonicidae