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

Noun heterostracan has 1 sense

heterostracan - extinct jawless fish with the anterior part of the body covered with bony plates; of the Silurian and Devonian
--₁ is a kind of jawless vertebrate, jawless fish, agnathan
--₁ is a member of Heterostraci, suborder Heterostraci

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