Class: Astrorhizata  Subclass: Astrorhizana  Order: Saccamminida  Family: Saccamminidae

 

found in the  Hannibal FM

from 13 localities in Missouri and Illinois

   Midwestern USA   USA

 

Geological Time: Carboniferous  Mississippian  Lower Mississippian

Hannibal Formation

 

images are shown with permission of the journal micropaleontology and
are provided by

 

 

classified by Conkin and Conkin as Proteonina, which is nowadays unaccepted

 

The identification is based upon:

 Conkin, James E., Conkin, Barbara M. and Pike, James W., 1965: 
Mississippian Foraminifera of the United States Part 2:
The Hannibal Formation of northeastern Missouri and western Illinois 
micropaleontology Volume 11 Number 3, July 1965  Pages 335-359 Plate 1, Fig. 20

 

 

 

dataset number: FEU-1004778