14 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 89 



The Paraiso series is placed by Kugler in the middle Eocene. Only 

 two localities in Venezuela are represented by the material that I have 

 studied. Of these only one contains larger foraminifera, an in- 

 determinate species of Discocyclina which closely resembles D. flin- 

 femis (Cushman), in material from locality 1142. On the basis of 

 this species of Discocyclina it is concluded that the geologic age is 

 Eocene. Gorter and Van der VIerk (25, p. iii) identify this species 

 as Discocyclina flint ensis (Cushman), which would suggest that at 

 least part of the Paraiso series of Venezuela and the Brito formation 

 of Nicaragua are of the same age. 



DESCRIPTION OF SPECIES 



Family CAMERINIDAE 



Genus CAMERINA Brugiere 



CAMERINA sp. cf. C. PARVULA (Cushman) 



Plate I, fig. 6 

 Nummulites parvula Cushman (14, p. 51, pi. 4, figs. 3-6). 



Poorly preserved specimens which appear to belong to this species 

 occur in Orbitoidal limestone from several upper Eocene localities in 

 Venezuela. 



Test small, robustly lenticular : umbo composed of light-colored 

 shell material, surface rather poorly preserved, shows only traces of 

 slightly raised gently curved septal markings. 



Both the microspheric and megalospheric forms were found. They 

 have the same exterior form, but differ in size and number of whorls. 

 The microspheric form has a diameter of about 3.5 mm and a thickness 

 of about 2.0 mm, composed of about four closely coiled whorls, having 

 about 32 chambers in the last whorl. 



The megalospheric form is only about half as large, diameter about 

 2.0 mm; thickness about 1.2 mm. Test composed of about three 

 whorls, there being about 24 chambers in the last whorl ; septal walls 

 gently curved. The marginal chord of both forms is thick. 



The poor preservation and occurrence in hard limestone, which 

 made the extraction of specimens from the matrix impractical, renders 

 the identification of these specimens as Camerina parvula (Cushman) 

 a little uncertain. 



These specimens also resemble C. matlcyi Vaughan {6^, p. 376, 

 pi. 39, figs. 2-7) from the middle Eocene " Yellow limestone " of 

 Jamaica. 



