Agnatha

== Translingual == === Etymology === From Ancient Greek ἀ- (a-, “without”) + γνάθος (gnáthos, “jaw”). === Proper noun === Agnatha Jawless fishes, that, like scaly fishes, reptiles, and mammals, have backbones and skulls but do not have paired jaws like humans or sharks, instead having round mouthparts that fasten onto their prey and rasp away bits that they ingest. A taxonomic superclass within the subphylum Chordata. A taxonomic infraphylum within the subphylum Chordata. ==== Synonyms ==== agnathans ==== Hypernyms ==== (superclass): Eukaryota – superkingdom; Animalia – kingdom; Bilateria – subkingdom; Deuterostomia – infrakingdom; Chordata – phylum; Chordata Craniata – clade (infraphylum): Eukaryota – superkingdom; Animalia – kingdom; Bilateria – subkingdom; Deuterostomia – infrakingdom; Chordata – phylum; Vertebrata – subphylum ==== Hyponyms ==== (subphylum): Myxini, †Cephalaspidomorphi, †Pteraspidomorphi – classes (infraphylum): Cyclostomata ==== Coordinate terms ==== Gnathostomata ==== Descendants ==== agnatha agnathan ==== See also ==== Ostracodermi === References === Agnatha on Wikipedia.Wikipedia Agnatha on Wikispecies.Wikispecies Category:Agnatha on Wikimedia Commons.Wikimedia Commons Hyperotreti at the Tree of Life Web Project “Agnatha”, in Paleobiology Database, 2026