Hyperammina rockfordensis Gutschick&Treckmann, 1959       

Class: Astrorhizata  Subclass: Astrorhizana  Order: Astrorhizida  Family: Hippocrepinidae
Taxon Profile

found in Missouri and Illinois   Midwestern USA   USA   
from 27 localities described in the source

Geological Time: Carboniferous  Mississippian  Lower Mississippian
Chouteau Group Limestones

images are shown with permission of micropaleontology and
are provided by James E. and Barbara M. Conkin

View of a specimen of Hyperammina rockfordensis Gutschick&Treckmann, 1959


The identification is based upon:
Conkin, James E., Conkin, Barbara M. and Canis, Wayne F., 1968:
Mississippian Foraminifera of the United States Part 3:
The limestones of the Chouteau Group in Missouri and Illinois.
micropaleontology Volume 14 Number 2, April 1968 Pages 133-178 Plate 2, Fig. 6-14