''Cystomeson'' is an extinct genus of
cystoporate bryozoan of the family
Fistuliporidae
Fistuliporidae is an extinct family of bryozoans within the order Cystoporida. Members of this family have lived from the early Ordovician to the late Triassic
The Triassic ( ) is a geologic period and system which spans 50.6 million years f ...
, discovered in the U.S. state of New Mexico. It contains
only one species, ''Cystomeson sierraensis''. It lived during the Mississippian period. Its colonies had a branching shape and possessed a vesicular skeleton, a layer of calcitic mineral material on the surface of the colony that contained acanthopores. Instead of being hollow as in the similar genus
Cheilotrypa, its colonies were solid, and its autozooecia derived from distinctive axial zooecia.
References
{{Taxon bar, from=Q107268267
Cystoporida
Fossil taxa described in 2018