heterostraci | sense examples, Usage and Definition from wordnet dictionary online

Noun heterostraci has 1 sense

Heterostraci, suborder Heterostraci - extinct group of armored jawless fishes or fishlike vertebrate; taxonomy is not clear
--₁ is a kind of animal order
--₁ is a member of Ostracodermi, order Ostracodermi
--₁ has members: heterostracan