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Hannibal FM
USA    39.39 N, 90.98 W
Mississippian / Carboniferous
the images are contributed by James E. and Barbara M. Conkin
    

The images are provided by Dr. James E. Conkin and Prof. Barbara M. Conkin, Louisville, Kentucky. The specimens were found by them and James W. Pike at 13 localities shown left.

The images and accompanying information are published: Conkin, J. E., Conkin, B. M. and James W. Pike, 1965: Mississippian Foraminifera of the United States Part 2: The Hannibal Formation of northeastern Missouri and western Illinois in micropaleontology Volume 11 Number 3, July 1965 Pages 335-359.
We thank Micropaleontology Press for giving the permission to use the images and accompanying information. Read more in the above mentioned article as a subscriber of the journal micropaleontology or ask your local library to subsribe to micropaleontology.


sorted by genus, species             sorted by morphology
    

Ammobaculites
beveridgei

Ammobaculites
pyriformis

Ammodiscella
sp.
Ammodiscus
longexsertus

Ammodiscus
semiconstrictus

Ammovertella
pikei

Ammovertella
sp.
 
 
 
 
 
 
 
Ammovertella
sp.
Ammovertella
sp.
Blastammina
eisenacki

Endothyra
bunkerae

Hyperammina
casteri

Hyperammina
constricta

Hyperammina
rockfordensis

 
 
 
 
 
 
 
Lagenammina
cumberlandiae

Lagenammina
sp.
Lagenammina
sp.
Oxinoxis
ligula

Oxinoxis
ligula

Psammosphaera
sp.
Pseudastrorhiza
conica

 
 
 
 
 
 
 
Reophax
lachrymosus

Reophax
northviewensis

Reophax
sp.
Thuramminoides
sphaeroidalis

Tolypammina
bulbosa

Tolypammina
frizzelli

Tolypammina
jacobschapelensis

 
 
 
 
 
 
 
Tolypammina
sp.
Trepeilopsis
glomospiroides

Trepeilopsis
recurvidens

Trepeilopsis
spiralis

Trepeilopsis
spiralis

Trochammina
mehli