Protoheterotrichida
Scientific classification
Domain:	Eukaryota
Clade:	Diaphoretickes
Clade:	SAR
Clade:	Alveolata
Phylum:	Ciliophora
Subphylum:	Postciliodesmatophora
Class:	Karyorelictea
Order:	Protoheterotrichida Nouzarède, 1977
Families
Geleiidae[1]
Synonyms
Aveliidae [2]

Protoheterotrichida is an order of karyorelict ciliates.^[3] It contains the family Geleiidae.^[4][1]

The term Protoheterotrichida derives from the three ancient Greek words πρῶτος (prôtos), meaning "first, earliest, most prominent", ἕτερος (héteros), meaning "another, different", and θρίξ, τριχός (thríx, trikhós), meaning "hair",^[5][6] in reference to the potential evolutionary affinities of these ciliates with the heterotrichs.^[2]

• Data related to Protoheterotrichida at Wikispecies