COGOLLO, Group

CRETACEOUS (Aptian to Cenomanian)

State of Zulia, Venezuela

Author of name: A. H. Garner, 1926.

Original reference: A. H. Garner, 1926, p. 679.

Original description: ibid.

The name Río Cogollo limestone, introduced by A. H. Garner (1926, p. 678-679), was used by R. A. Liddle as Cogollo formation (Liddle, 1928, P. 145).

F. A. Sutton subdivided the Cogollo formation of western Zulia into several formations, viz. the Apón, Aguardiente, and Capacho formations from bottom to top, and raised the term Cogollo to the rank of a group (Sutton, 1946, p. 1641) .

E. Rod recently discriminated the Lisure and Maraca formations in the Sierra de Perijá which are embraced in the upper Cogollo group (Rod and Maync, 1954, p. 202).

The Cogollo group as used since F. A. Sutton therefore includes the Lower Cretaceous sediments between the clastic basal Río Negro formation and the Upper Cretaceous La Luna formation.

C. González de Juana uses the term Cogollo facies for the limestones on top of the clastic lowermost Cretaceous deposits ("Tomón facies") of the Urgonian cycle (González de Juana, 1951, p. 197).

Wolf Maync