Plagiopylida
| Plagiopylids | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota | 
| (unranked): | SAR | 
| Superphylum: | Alveolata | 
| Phylum: | Ciliophora | 
| Class: | Plagiopylea | 
| Order: |  Plagiopylida Small & Lynn, 1985  | 
| Typical families | |
| 
 Plagiopylidae  | |
The plagiopylids are a small order of ciliate protozoa, including a few forms common in anaerobic habitats.
The body cilia are dense, and arise from monokinetids with an entirely unique ultrastructure; one or two rows of dikinetids run into the oral cavity, which takes the form of a groove, with a deep tube lined by oral cilia leading to the mouth. The order was introduced by Eugen Small and Denis Lynn in 1985, who treated it as a subclass of Oligohymenophorea. Since then they tend to be treated as an independent class, possibly affiliated with the Colpodea.
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Further reading
Xu, Yuan; Shao, Chen; Miao, Miao; Song, Weibo (January 2013). "Redescription of Parasonderia vestita () comb. nov. (Ciliophora, Plagiopylida), with notes on its phylogeny based on SSU rRNA gene". European Journal of Protistology 49 (1): 106–113. doi:10.1016/j.ejop.2012.03.001. PMID 22771178.
Modeo, Letizia; Fokin, Sergei; Boscaro, Vittorio (February 2013). "Morphology, ultrastructure, and molecular phylogeny of the ciliate Sonderia vorax with insights into the systematics of order Plagiopylida". BMC Microbiology 13 (40). doi:10.1186/1471-2180-13-40. PMID 23418998.