suborder heterostraci is a noun meaning "extinct group of armored jawless fishes or fish-like vertebrate; taxonomy is not clear". It carries one recorded sense.
extinct group of armored jawless fishes or fish-like vertebrate; taxonomy is not clear
Definitions, synonyms and semantic relations for suborder heterostraci come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.