illustrations from the Bulletins of American Paleontology
shown thanks to the permission of the editor
PRI
Paleontological Research Institution, Ithaca, New York
and made available by the Biodiversity Heritage Library
License: Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)

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Anictosphaera
progressa

Aschemonella
bastillensis

Atelikamara
incomposita

Atelikamara
incomposita

Glomospira
siluriana

Metamorphina
tholus

Raibosammina
aspera

 
 
 
 
 
 
 
Sorosphaera
osgoodensis

Sorostomasphaera
waldronensis

Stomasphaera
brassfieldensis

Thurammina
arcuata

Thurammina
trituba

Thurammina
tubulata

Webbinelloidea
hemispherica

 
 
 
 
 
 
 
Webbinelloidea
ventriquetra