superclass : Idioms & Phrases
superclass agnatha
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noun superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms
Agnatha.
WordNet
superclass chelicerata
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noun spiders; scorpions; horseshoe crabs
Chelicerata.
WordNet
superclass gnathostomata
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noun comprising all vertebrates with upper and lower jaws
Gnathostomata.
WordNet
superclass myriapoda
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noun used in some classifications to encompass the millipedes (Diplopoda) and centipedes (Chilopoda); formerly a large taxon including also the Pauropoda and Symphyla; the term Myriapoda now usually used synonymously with Diplopoda and limited to the millipedes
