📚 noun • entry_id 52893
agnathan
/ˈæɡ.nə.θən/
Meanings (ES + gloss)
agnato
A member of the superclass Agnatha of jawless vertebrates.
The hagfish is an agnathan, a modern representative of the earliest evolved group of vertebrates, the ostracoderms or jawless fishes, which arose prior to the ancient placoderms (3…
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 origin…
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