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Chouteau Group
USA    38.9 N, 91.43 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 Wayne F. Canis at the 27 localities shown left.

The images and accompanying information are published: Conkin, J. E., Conkin, B. M. and Wayne F. Canis, 1968: Mississippian Foraminifera of the United States Part 3. The limestones of the Chouteau Group in Missouri and Illinois in Micropaleontology Vol. 14, No. 2 (April 1968), pp. 133-178.
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
chappelensis

Ammobaculites
leptos

Ammodiscus
longexsertus

Ammodiscus
semiconstrictus

Ammovertella
lisae

Ammovertella
pikei

Blastammina
eisenacki

 
 
 
 
 
 
 
Hyperammina
casteri

Hyperammina
compacta

Hyperammina
constricta

Hyperammina
gracilenta

Hyperammina
nitida

Hyperammina
rockfordensis

Hyperammina
sappingtonensis

 
 
 
 
 
 
 
Oxinoxis
ligula

Oxinoxis
swallowi

Psammosphaera
sp.
Pseudastrorhiza
conica

Pseudastrorhiza
delicata

Reophax
buccina

Reophax
buccina

 
 
 
 
 
 
 
Reophax
calathus

Reophax
lachrymosus

Reophax
northviewensis

Reophax
sp.
Rhabdammina
sp.
Saccammina
howei

Sorosphaera
cooperensis

 
 
 
 
 
 
 
Sorosphaera
cooperensis

Sorosphaera
papilla

Thurammina
congesta

Thurammina
triradiata

Thurammina
sp.
Thuramminoides
sphaeroidalis

Tolypammina
bransoni

 
 
 
 
 
 
 
Tolypammina
bransoni

Tolypammina
bulbosa

Tolypammina
cyclops

Tolypammina
frizzelli

Tolypammina
gersterensis

Tolypammina
gersterensis

Tolypammina
jacobschapelensis

 
 
 
 
 
 
 
Tolypammina
rotula

Trepeilopsis
glomospiroides

Trepeilopsis
recurvidens

Trepeilopsis
recurvidens

Trochammina
mehli