Guembelitriella graysonensis (Tappan, 1940)
 
Class: Rotaliata  Subclass: Globigerinana  Order: Heterohelicida  Family: Guembelitriidae
 
found in material from the  Miscellaneous Localities

Denton County, Texas
   American South   USA
 
Geological Time: Cretaceous  Upper Cretaceous  Cenomanian

the SEM image is provided by Dr.
 
 
View of a specimen of Guembelitriella graysonensis (Tappan, 1940)
 
The identification is based upon:
 Georgescu, M. D., 2009: On the origins of Superfamily Heterohelicacea Cushman, 1927 and the polyphyletic nature of planktic foraminifera. Revista Española de Micropaleontología, 41 (1-2).  page 107-144. Plate 2, Fig. 1
 
 
genus.php?no=1015548&aktion=suche
 
dataset number: FEU-1015548
 
 
Citation:
Georgescu, M. D., 2009: On the origins of Superfamily Heterohelicacea Cushman, 1927 and the polyphyletic nature of planktic foraminifera. Revista Española de Micropaleontología, 41 (1-2). page 107-144. Plate 2, Fig 1