UCMP C-14091, Manantial (Paleocene of Colombia)

Where: Colombia (11.1° N, 72.7° W: paleocoordinates 8.5° N, 59.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Manantial Formation, Selandian (61.6 - 59.2 Ma)

• From a bed 2 cm-thick, near the top of informal "Formation II" of Haught, Colley, and Belding (Tropical Oil Company), which is the Manantial Formation according to Etayo-Serna. Belongs to palynological zone T-02 to T-03a (Ayala et al. 2012), which are correlated with the middle Paleocene according to Jaramillo et al. (2011) on the basis of carbon isotopes.

• bed-level stratigraphic resolution

Environment/lithology: paralic; fine-grained, shelly/skeletal, calcareous sandstone

• According to Etayo-Serna, "Probably lived at a depth between the low tide mark down to thirty meters and was concentrated in a channel or inlet." According to Jaramillo et al. (2007): Upper Manantial Formation contains lenticular, wavy and ripple lamination, and moderate bioturbation at some levels. Cross beds are identified in sandstones near the top. These deposits accumulated in a mixed shallow platform to fine-grained subtidal environments (lagoons), crossed by subtidal channels at the top. Interpreted as a mixed carbonate-siliciclastic marginal to shallow-marine platform by Bayona et al. (2011).
• Calcareous quartzitic fine-grained sandstone to packed biomicrite

Size class: macrofossils

Preservation: mold/impression

Collected by J. Wyatt Durham; reposited in the UCMP

Primary reference: A. K. Miller and H. R. Downs. 1950. Tertiary nautiloids of the Americas: supplement. Journal of Paleontology 24:1-18 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 180400: authorized by Matthew Clapham, entered by Matthew Clapham on 15.07.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Ostreidae
Ostrea (? Turkostrea) renzoni n. sp. Etayo-Serna 1979 oyster
 Carditida - Carditidae
Baluchicardia sp. Rutsch and Schenck 1943 clam
Baluchicardia nuriae n. sp. Etayo-Serna 1979 clam
Baluchicardia obliquata n. sp. Etayo-Serna 1979 clam
 Pholadida - Corbulidae
Corbula (Bicorbula) manantialense n. sp. Etayo-Serna 1979 clam
 Protobranchia - Nuculanidae
? Litorhadia buenoi n. sp. Etayo-Serna 1979 pointed nut clam
Gastropoda
 Ptenoglossa - Epitoniidae
Confusiscala sp. de Boury 1909 wentletrap
 Neogastropoda - Johnwyattiidae
Johnwyattia johnwyatti n. gen. n. sp.
Johnwyattia johnwyatti n. gen. n. sp. Etayo-Serna 1979 snail
 Neogastropoda - Buccinidae
Hubachia ramirolobae n. gen. n. sp.
Hubachia ramirolobae n. gen. n. sp. Etayo-Serna 1979 true whelk
 Neogastropoda - Fasciolariidae
Buccinofusus sp. Conrad 1868 snail
Fusinus sp. Rafinesque 1815 snail
 Neogastropoda - Volutidae
 Neogastropoda - Turridae
? Orthosurcula sp. Casey 1904 turrid
Andicula colombiana n. sp. Etayo-Serna 1979 turrid
 Stromboidea - Strombidae
Jaumaporta jaumaporta n. gen. n. sp.
Jaumaporta jaumaporta n. gen. n. sp. Etayo-Serna 1979 true conch
 Ficoidea - Ficidae
Priscoficus johnstoni Rutsch 1943 fig shell
Fulguroficus hoffstetteri n. sp. Etayo-Serna 1979 fig shell
 Naticoidea - Naticidae
? Euspira gregori n. sp. Etayo-Serna 1979 moon snail
Euspira ottogeyeri n. sp. Etayo-Serna 1979 moon snail
 Sorbeoconcha - Turritellidae
Woodsalia allisoni n. sp. Etayo-Serna 1979 turret shell
Turritella (Bowlesia) pecki n. sp. Etayo-Serna 1979 turret shell
Turritella (Sohlitella) llinasi n. sp. Etayo-Serna 1979 turret shell
Turritella (Torquesia) elicitatoides Maury 1913 turret shell
Turritella (Merriamella) rinconi n. sp. Etayo-Serna 1979 turret shell
 Sorbeoconcha - Cerithiidae
"Semivertagus sp." = Clava (Semivertagus)
"Semivertagus sp." = Clava (Semivertagus) Cossmann 1880 cerith snail
 Sorbeoconcha - Pachychilidae
Melanatria beldingi n. sp. Etayo-Serna 1979 snail
 Heterostropha - Ringiculidae
Ringicula (Ringiculella) carvajali n. sp. Etayo-Serna 1979 snail
 Pyramidelloidea - Pyramidellidae
Syrnola (Puposyrnola) sp. Cossmann 1921 snail
Odostomia guajirana n. sp. Etayo-Serna 1979 snail
 Architectonicoidea - Architectonicidae
Pseudomalaxis caceresi n. sp. Etayo-Serna 1979 snail
Cephalopoda
 Nautilida - Hercoglossidae
? Cimomia sp. Conrad 1866 nautiloid