''Urostylida'' is an order of
littoral
The littoral zone or nearshore is the part of a sea, lake, or river that is close to the shore. In coastal ecology, the littoral zone includes the intertidal zone extending from the high water mark (which is rarely inundated), to coastal areas ...
ciliates.
The taxonomy of the order is largely unresolved and still subject to scientific inquiry.
Families
According to the
Catalogue of Life
The Catalogue of Life is an online database that provides an index of known species of animals, plants, fungi, and microorganisms. It was created in 2001 as a partnership between the global Species 2000 and the American Integrated Taxonomic Info ...
, nine families are accepted within ''Holosticha''.
*
Bakuellidae
*
Holostichidae
*
Kahliellidae
*
Pseudokeronopsidae
*
Pseudourostylidae
*
Psilotrichidae
*
Rigidothrichidae
*
Trachelostylidae
*
Urostylidae
References
Hypotrichea
Eukaryote orders
Taxa described in 1979
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