''Toxasteridae'' is an extinct family of
sea urchin
Sea urchins () are spiny, globular echinoderms in the class Echinoidea. About 950 species of sea urchin live on the seabed of every ocean and inhabit every depth zone from the intertidal seashore down to . The spherical, hard shells (tests) of ...
s.
These slow-moving shallow infaunal deposit feeder-detritivores lived during the
Cretaceous period, from 145.5 to 61.7 Ma.
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Genera
*'' Adytaster''
*'' Aphelaster''
*'' Douvillaster''
*'' Enallopneustes''
*'' Heteraster''
*'' Isaster''
*'' Isomicraster''
*'' Macraster''
*'' Mokotibaster''
*'' Palmeraster''
*'' Polydesmaster''
*'' Toxaster''
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References
Spatangoida
Cretaceous first appearances
Cretaceous extinctions
Prehistoric echinoderm families
{{paleo-echinoidea-stub