Definition of Rotifera in English:
A small phylum of minute multicellular aquatic animals that have a characteristic wheellike ciliated organ used in swimming and feeding.
- Micrognathozoa lack this characteristic feature and, therefore, are postulated to be more basal in the Gnathifera, as a sister-group either to Gnathostomulida or Rotifera / Acanthocephala.
- The remaining members of this novel metazoan clade were Rotifera, Acanthocephala (together Syndermata), and Cycliophora.
- Because the new taxon lacks syncytia, a key character for the Rotifera and Acanthocephala, the Micrognathozoa cannot be included in Syndermata.
Definition of Rotifera in:
- British & World English dictionary
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