agnathan
Collocations
1ADJ.
jawless, modern, representative
Definitions
adj
Belonging or pertaining to the superclass Agnatha, the jawless vertebrates.
Haikouichthys is one of three species of jawless (or agnathan) fish to be found in the Early Cambrian period.
noun
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.
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).
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Example Bank
3Haikouichthys is one of three species of jawless (or agnathan) fish to be found in the Early Cambrian period.
WiktionaryThus 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
WiktionaryThe 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).
Wiktionary