164 



UNITED STATES NATIONAL MUSEUM BULLETIN 216 



Globigerina venezuelana Hedberg 

 Plate 35, Figtjres 16a-17 



Globigerina venezuelana Hedberg, Journ. Paleontol., vol. 11, 

 No. 8, p. 681, pi. 92, figs. 7a-b, 1937. — Ctjshman and 

 Stainfobth, Cushman Lab. Foram. Res., Spec. Publ. 14, 

 p. 67, pi. 12, figs. 13a-b, 1945.— Bermxidez, Cushman Lab. 

 Foram. Res., Spec. Publ. 25, p. 280, pi. 21, figs. 39-40, 

 1949.— BoLLi, U. S. Nat. Mus. Bull. 215, p. 110, pi. 23, figs. 

 6a-8b, 1957. 



Globigerina conglomerata Schwager, Beckmann, Eclog. Geol. 

 Helvetiae, vol. 46, No. 2, p. 391, pi. 25, figs. 6-9, 1953. 



Steatigeaphic eange: Porticulasphaera mexieaina 

 zone, Navet formation to Globorotalia menardii zone, 

 Lengua formation, probably continuing into yomiger 

 beds. 



Locality: Figured hypotypes (USNM P5709a-b) 

 from the Porticulasphaera mexicana zone, Navet 

 formation ; same locality as given for Hastigerina micra 

 (Cole) (p. 161); sample Hg 8581 (TTOC 215782). 



Globigerina parva Bolli 



Plate 36, Figures 7 a-c 



Globigerina parva Bolli, U. S. Nat. Mus. Bull. 215, p. 108, pi. 22, 



figs. 14 a-c, 1957. 

 IGlobigerina ouachiiaensis Howe and Wallace, Geol. Surv. 



Bull. Louisiana Dep. Conserv., No. 2, p. 74, pi. 10, figs. 



10 a-b, 1932. 



Steatigeaphic eange: Truncorotaloides rohri zone, 

 Navet formation t« Glohigerina ampliapertura zone, 

 Cipero formation. 



Locality: Figured hypotype (USNM P5717) from 

 the type locality of the Globigerapsis semiinvolvta zone, 

 Navet formation (see p. 159); sample Ky 7 (TTOC 

 144343). 



Remaeks: This small, strongly lobate, fairly high 

 spired form with four chambers in the last whorl is 

 typical for the upper Eocene and basal Oligocene. 

 Glohigerina ouachitaensis Howe and Wallace, described 

 from the upper Eocene is probably very close to this 



Globigerina ampliapertura Bolli 

 Plate 36, Figures 8 a-c 



Globigerina ampliapertura Bolli, U. S. Nat. Mus. Bull. 215, p. 

 108, pi. 22, figs. 4a-7b, 1957. 



Steatigeaphic eange: Glohorotalia cocoaensis zone, 

 San Fernando formation to Globigerina ampliapertura 

 zone, Cipero formation. 



Locality: Figured hypotype (USNM P5718) from 

 the Globorotalia cocoaensis zone, San Fernando forma- 

 tion; augerhole, Jarvis Street, San Fernando; sample 

 KE, 25636 (TTOC 238132). 



Remaeks: Globigerina ampliapertura, which appears 

 in the uppermost Eocene and continues into the basal 

 Oligocene, seems to be genetically related to Globoro- 

 talia centralis Cushman and Bermudez. Intermediate 

 forms (USNM P5719a,b) showing the aperture in a 

 transitional position, are commonly found in the 

 Globorotalia cocoaensis zone (pi. 36, figs. 9, 10). The 

 species might represent a gerontic stage of the G. 



centralis-G. cocoaensis strain, reverting before its ex- 

 tinction to a globigerinid form and also to random 

 coiling. 



Globigerina ciperoensis angustiumbilicata Bolli 



Plate 36, Figures 6a-b 



Globigerina ciperoensis angustiumbilicata Bolli, U. S. Nat. Mus. 

 Bull. 215, p. 109, pi. 22, figs. 12a-13c, 1957. 



Steatigeaphic eange: Globorotalia cocoaensis zone 

 (probably upper part), San Fernando formation to 

 Oatapsydrax dissimilis zone, Cipero formation. 



Locality: Figured hypotype (USNM P5716) from 

 the Globorotalia cocoaensis zone, San Fernando forma- 

 tion; Soldado Rock Island (see Kugler, 1938); sample 

 K 3741 (TTOC 190838). 



Globigerina rohri Bolli 

 Plate 36, Figures 4a-b 



Globigerina rohri Bolli, U. S. Nat. Mus. Bull. 215, p. 109, pi. 23, 



figs. la-4b, 1957. 

 Globigerina venezuelana Hedberg, Beckmann, Eclog. Geol. 



Helvetiae, vol. 46, No. 2, p. 392, pi. 10, figs. 12-13, 1953. 



Steatigeaphic eange: Globorotalia cocoaensis zone, 

 San Fernando formation to Catapsydrax dissimilis zone, 

 Cipero formation. 



Locality: Figured hypotype (USNM P5714) from 

 the Globorotalia cocoaensis zone, San Fernando forma- 

 tion, Kern Trinidad Oilfields well C-609, core 4,425-36 

 feet (TTOC 192784). 



"Globigerinoides" higginsi Bolli, new species 

 Plate 36, Figures lla-13b 



Shape of test high trochospiral; equatorial periphery 

 distinctly lobate. WaU calcareous, perforate, surface 

 finely pitted, in well preserved specimens with very 

 minute spines. Chambers spherical, later ones often 

 somewhat ovate, 12-15, an-anged in about 2K whorls; 

 the last whorl of about 4 chambers increasing moder- 

 ately in size, the ultimate chamber may be smaller 

 than the penultimate (see fig. 12). Sutures on spiral 

 side radial, deeply incised; on umbilical side radial, 

 deeply incised. Umbilicus narrow, deep. Primary 

 aperture a high arch, interiomarginal-umbilical; in well 

 preserved specimens a supplementary sutural aperture 

 is seen between the penultimate and ultimate chambers 

 and occasionally also between earlier chambers of the 

 last whorl. Coiling random in the Globorotalia palme- 

 rae zone; a preference for dextral coUing of over 90 

 percent in the Hantkenina aragonensis and Globigerapsis 

 kugleri zone, Navet formation. Largest diameter of 

 holotype 0.5 mm. 



Steatigeaphic eange: Globorotalia palmerae zone to 

 Globigerapsis kugleri zone, Navet formation. 



Locality: Holotype (USNM P5720) from an Eocene 

 core, lat. 30° 43' N., long. 62° 28' W.; depth of water 

 1,554 meters; depth of sample in core, 120-122 cm. 

 Figured paratypes (USNM P5721a, b) from the Hant- 

 kenina aragonensis zone, Navet formation; outcrop on 

 left side of right branch of Nariva River, about 450 feet 



