U.C. Location S. 7341 (Zone A) - Clark and Durham (1946) (Eocene of Colombia)

Also known as S. 7341

Where: Sucre, Colombia (9.7° N, 75.2° W: paleocoordinates 7.3° N, 68.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Zone A Member, Late/Upper Eocene (37.2 - 33.9 Ma)

• No lithostratigraphic nomenclature for these collections. Deposits of late Eocene age, referred to as Zone A. Correlatable on the basis of faunas to the Saman Formation and Chira Shales of Peru (upper Eocene to Oligocene) and upper Jackson Formation of the Gulf Coast, USA (Bartonian). The Eocene in the Sucre region of Columbia reaches 4,500 ft in thickness, of which the collections span the upper portion of Anderson's (1928) unit F (600 ft), near the top of this succession.

• bed-level stratigraphic resolution

Environment/lithology: coastal; fine-grained, medium sandstone

• Fauna indicative of fairly shallow waters, but below low-tide, tropical.
• Medium-fine sandstone.

Size class: macrofossils

Reposited in the CAS, UCMP

Collection methods: quarrying,

• Collected by the Standard Oil Company of California. Held in repositories at both CAS and UCMP.

Primary reference: B. L. Clark and J. W. Durham. 1946. Eocene Faunas from the Department of Bolivar, Colombia. Geological Society of America Memoir 16:1-126 [M. Patzkowsky/K. Layou/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 42839: authorized by Austin Hendy, entered by Austin Hendy on 05.08.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for mollusca (identified by B.L. Clark).
Gastropoda
 Cerithioidea - Cerithiidae
Cerithium (Pseudoaluco) vientoensis Clark and Durham 1946 cerith snail
 Cerithioidea - Pachychilidae
 Cerithioidea - Turritellidae
Turritella masinguiensis Clark and Durham 1946 turret shell
 Cerithioidea - Diastomatidae
? Diastoma cf. elaenia Olsson 1929 snail
 Sorbeoconcha - Naticidae
Neverita (Glossaulax) bolivarensis Clark and Durham 1946 moon snail
Crommium masinguiensis Clark and Durham 1946 moon snail
 Sorbeoconcha - Cassidae
Ceiba ceibaensis Clark and Durham 1946 snail
 Neogastropoda - Volutidae
Pavora olssoni Clark and Durham 1946 volute
 Neogastropoda - Clavatulidae
Turricula sp. Schumacher 1817 snail
 Neogastropoda - Pseudolividae
Pseudoliva (Buccinorbis) vientoensis Clark and Durham 1946 snail