NO. II FORAMINIFERA OF VENEZUELA GRAVELL II 



Vaughan, L. (Lepidocyclina) parvula Cushman, L. (Lepidocyclina) 

 matleyi Vaughan, L. {Ncphrolepidina) undosa Cushman, Lepidocy- 

 clina gigas Cushman var., L. (Ncphrolepidina) crassata Cushman. 



Montpelier white limestone: Miogypsina bracuensis Vaughan, L. 

 {Lepidocyclina) canellei Lemoine and R. Douville, L. (Ncphrolepi- 

 dina) undosa Cushman, L. (Ncphrolepidina) crassata Cushman. 



Vaughan (57, p. 279) quotes Dr. C. A. Matley as follows: "The 

 flint-bearing, chalky, and globigerinal * Montpelier formation ' of Hill 

 lies below the Lepidocyclina undosa zone, but its type of sedimentation 

 is missing from the succession in many parts of the island and 

 it seems to be a deep-water facies of the White Limestone that 

 ])asses laterally into shallower-water mollusca-bearing beds. Hill's 

 ' Moneague formation ' certainl}^ includes the L. undosa zone but its 

 upper limit was not defined by the writer." 



Vaughan (57, p. 280), in summarizing the stratigraphic distribution 

 of the larger foraminifera of Montpelier white limestone and the 

 Moneague formation shows that the larger foraminiferal fauna sup- 

 ports Dr. Matley's conclusions regarding the relations of these 

 formations. 



The Oligocene of Jamaica and the San Luis series contain the 

 following species in common : Lepidocyclina canellei, L. forrcsti, L. 

 nndosa, L. gigas. They also contain species of the genus Miogypsina. 



Rocks of Oligocene age, which for the present may be considered 

 equivalent to the San Luis series of Venezuela, occur on the island of 

 Trinidad, although a description of their Oligocene fauna has not, to 

 my knowledge, yet been published. Oligocene material from Trinidad, 

 containing L. (Ncphrolepidina) undosa Cushman, L, (Lepidocyclina) 

 canellei Lemoine and R. Douville, L. (Lepidocyclina) yurnagunensis 

 Cushman, L. (Eulepidina) favosa Cushman, and other Oligocene 

 forms, is in the collection of the Scripps Institution of Oceanography. 



The San Luis series of Venezuela may be correlated with the Meson, 

 from which Vaughan (48, p. 7Z^) reports the occurrence of abundant 

 Lepidocyclina gigas var. mcxicana Cushman and L. (Ncphrolepidina) 

 undosa Cushman, and states: "The formation is approximately the 

 equivalent of the Glendon formation of Alabama, Florida, and 

 Georgia, and of at least the lower part of the Antigua formation of 

 Antigua." 



Collections from Mexico, at the Scripps Institution of Oceanogra- 

 phy, also contain other middle Oligocene large foraminifera. Some 

 of these species are L. (Eulepidina) favosa Cushman, L. (Nephro- 

 lepidina) crassata Cns\\m?in,L. (Ncphrolepidina) tournoueri Lemoine 

 and R. Douville, andL. (Ncphrolepidina) chattahoocheensis Cushman. 



