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Agnathan
//ˈæɡ.nə.θən// adj, noun
Definitions
Adjective
- 1 Belonging or pertaining to the superclass Agnatha, the jawless vertebrates. not-comparable
"Haikouichthys is one of three species of jawless (or agnathan) fish to be found in the Early Cambrian period."
Noun
- 1 A member of the superclass Agnatha of jawless vertebrates.
"Thus should the cranial neural crest in cyclostomes prove to be non-skeletogenous this might be a reflection either of its own primitiveness or of the different evolutionary origins and morphological status of the visceral skeleton in agnathans and gnathostomes."
- 2 eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms wordnet
Etymology
Etymology 1
From Agnatha, from Ancient Greek ἀ- (a-, “without”) + γνάθος (gnáthos, “jaw”).
Etymology 2
From Agnatha, from Ancient Greek ἀ- (a-, “without”) + γνάθος (gnáthos, “jaw”).
See also for "agnathan"
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