''Tethyaster'' is a genus of
echinoderms
An echinoderm () is any member of the phylum Echinodermata (). The adults are recognisable by their (usually five-point) radial symmetry, and include starfish, brittle stars, sea urchins, sand dollars, and sea cucumbers, as well as the sea li ...
belonging to the family
Astropectinidae
The Astropectinidae are a family of sea stars in the order Paxillosida. Usually, these starfish live on the seabed and immerse themselves in soft sediment such as sand and mud.
They are not to be confused with species in the genus '' Archaster'' ...
.
The genus has almost
cosmopolitan distribution
In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext ...
.
Species:
*''
Tethyaster albertensis''
*''
Tethyaster antares''
*''
Tethyaster aulophora''
*''
Tethyaster canaliculatus''
*''
Tethyaster grandis''
*''
Tethyaster guerangeri''
*''
Tethyaster jurassicus''
*''
Tethyaster pacei''
*''
Tethyaster subinermis''
*''
Tethyaster tangaroae''
*''
Tethyaster vestitus''
References
Astropectinidae
Asteroidea genera
{{Asteroidea-stub