Protoheterohelix washitensis (Tappan, 1940)       

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

found in the area of Dallas-Fort Worth   American South   USA   North Central Texas, Dallas-Fort Worth area

Lower Eagle Ford Group, lower Britton FM, Turner

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 Virginia Friedman

View of a specimen of Protoheterohelix washitensis (Tappan, 1940)

The identification is based upon:
Georgescu, Marius D. and Huber, Brian T., 2009: Early Evolution of the Cretaceous serial planktic foraminifera (Late Albian-Cenomanian) Journal of Foraminiferal Research, Oct 2009; 39: 335 - 360. 26 pp. Plate 1+2, Fig. all


dataset number: FEU-1004399

Hesemann, M., The Database (2020). Accessed at on 2020-09-23. doi: 10/dt5p