... the region described by Hodge (1920) fossil evidence was found ( Mitchell, 1954 ) to substantiate Hodge’s claim for the presence of the Eocene. In Hodge’s Rio Jueyes “series,” two echinoids were found, remarkably similar to Echinolampus clevei and Parapygus antillarum . Jackson (1922) had described...

... early Cretaceous in age on the basis of inconclusive paleontologic evidence; the two formations overlying these he placed in the Upper Cretaceous; while his Río Jueyes “series” he thought was Eocene on the basis of a single pelecypod (identified by A. W. Grabau as Venericardia alticostata...

... by two principal faults: the Río Jueyes fault on the northeast and the Esmeralda fault on the southwest (Fig.  3 ). On the basis of an offset fold in Cretaceous rocks, Glover (1971) interpreted about 10 km of left‐lateral strike slip on the Esmeralda fault, which he mapped as concealed beneath...