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Planulitella sphenoides (Masters, 1976)       

Class: Rotaliata  Subclass: Globigerinana  Order: Heterohelicida  Family: Heterohelicidae

found in material from the Miscellaneous Localities   Caribbean   Mexico   DSDP Site 95, Yucatan Outer Shelf

Geological Time: Cretaceous  Upper Cretaceous  Santonian


the SEM image is provided by Dr. M. Dan Georgescu

View of a specimen of Planulitella sphenoides (Masters, 1976)

the identification may differ from that on WoRMS and is based on the publication mentioned below

The identification is based upon:
Georgescu, M. D., 2010: Origin, taxonomic revision and evolutionary classification of the late Coniacian-early Campanian (Late Cretaceous) planktic foraminifera with multichamber growth in the adult stage. Revista Española de Micropaleontología, 42 (1). page 59-118. Plate 2, Fig. 1-11

           

dataset number: FEU-1014306
           

Citation:
Georgescu, M. D., 2010: Origin, taxonomic revision and evolutionary classification of the late Coniacian-early Campanian (Late Cretaceous) planktic foraminifera with multichamber growth in the adult stage. Revista Española de Micropaleontología, 42 (1). page 59-118. Plate 2, Fig 1-11