Class: Tubothalamea   Subclass:    Order: Spirillinida   Family: Ammodiscidae

 

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
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The identification is based upon:

 Conkin, James E., Conkin, Barbara M. and Pike, James W.,  1965:  <br>Mississippian Foraminifera of the United States Part 2:<br>The Hannibal Formation of northeastern Missouri and western Illinois  <br>micropaleontology Volume 11 Number 3, July 1965    Pages 335-359  Plate 1,  Fig. 46

 

 

dataset number: FEU-1004787