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

 

found in the area of  Dallas-Fort Worth

North Central Texas, Dallas-Fort Worth area

Lower Eagle Ford Group, lower Britton FM, Turner

   American South   USA

 

Geological Time: Cretaceous  Upper Cretaceous  Cenomanian

Britton Formation

 

the image is made by Dr. Georg Rosenfeldt and Michael Hesemann with support of the
Naturwissenschaftlicher Verein in Hamburg


Read more in Virginia Friedmans Master Thesis

material provided by

 

 

 

The identification is based upon:

 Nederbragt, Alexandra J., 1991: Late Cretaceous biostratigraphy and development of Heterohelicidae (planktic foraminifera) micropaleontology 37  44 pp. Plate 3, Fig. 

 

 

 

dataset number: FEU-1004372