Definition of heterostracan Heterostracan

het•er•os•tra•can

We found 2 definitions of heterostracan from 2 different sources.

What does heterostracan mean?

Plural: heterostracans

heterostracan - extinct jawless fish with the anterior part of the body covered with bony plates; of the Silurian and Devonian

agnathan, jawless fish, jawless vertebrate eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms

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= antonym
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heterostracan in sign language