Extinct jawless fish with the anterior part of the body covered with bony plates; of the Silurian and Devonian.
![]() |
![]() |
![]() | ![]() | ![]() | |||
|
|
|
![]() |
Words linked to "Heterostracan" : jawless fish, jawless vertebrate, suborder Heterostraci, Heterostraci, agnathan |
Copyright © 2025 Dictionary One.com |