NO. II FORAMINIFERA OF VENEZUELA GRAVELL Q 



Lepidocyclina which may be L. (Lepidocyclina) canellei Lemoine and 

 R. Douville. Sections, of indurated yellowish limestone from locality 

 443 consist largely of shell fragments and contain a few sections 

 of a small indeterminate Lepidocyclina (Lepidocyclina) sp. indet. a. 

 Kiigler considers it possible that material from locality 443 may be 

 from the San Luis series. The few specimens of indeterminate Lepi- 

 docyclina do not present sufficient paleontologic evidence to determine 

 definitely the stratigraphic age of the material. 



The material from locality 468 is dense algal limestone. Sections 

 of this limestone contain a few poor specimens of an indeterminate 

 species of large foraminifera, which Dr. H. G. Kugler by personal 

 communication informed Dr. T. Wayland Vaughan had been identified 

 by G. D. Hawkins as Orbitolites sanluisensis Hodson. A survey of 

 the literature has thus far failed to reveal any description or mention 

 of any such species. The large foraminifera occurring in this material 

 do not belong to the genus Orbitolites, but appear to be Amphisorus. 



The San Luis series is represented by material from numerous 

 localities. This formation contains Aniphistcgina lessonii d'Orbigny, 

 Archaias sp., Camerina sp. indet., Carpenteria sp., Hctcrostegiua 

 panamensis Gravell, n. sp. 



Gypsina globulus (Reuss),L. (Lepidocyclina) can^//^i Lemoine and 

 R. Douville, L. (Lepidocyclina) forresti Vaughan, L. (Lepidocyclina) 

 sanluisensis Gravell, n. sp., L. (Nephrolepidina) undosa Cushman, 

 L. (Nephrolepidina) sp., Lepidocyclina gigas Cushman, L. (Eulepi- 

 dina) favosa Cushman, Lepidocyclina sp. indet. b, Miogypsina haw- 

 kinsi Hodson, and Miogypsina bramlcttei Gravell, n. sp. The strati- 

 graphic occurrence of the latter is somewhat uncertain, although the 

 specimens are probably from the San Luis series. 



The San Luis series is most probably susceptible of division into 

 zones on the basis of the larger foraminiferal fauna. This would 

 require the collection of material at frequent intervals across as many 

 sections of the formation as possible, in order that geologic succession, 

 range, and the lateral distribution and persistence of the faunal units 

 could be accurately determined. 



It appears that the San Luis series may safely be correlated with at 

 least the lower part of the Antigua formation of the Island of Antigua, 

 West Indies, which contains a similar fauna. The following species 

 are reported by Cushman (14, p. 24) from Antigua: L. (Eulepidina) 

 favosa Cushman, L. (Nephrolepidina) undosa Cushman, Lepidocy- 

 clina gigas Cushman, Lepidocyclina undulafa Cushman. In addition 

 to the above species of Cushman, Vaughan (55, pp. i, 2) described 

 L. (Lepidocyclina) forresti from the Oligocene of Antigua. 



