Cephalaspid
The cephalaspids (Cephalaspidida) are an extinct group of fish from the Devonian period which was 419.2 to 358.9 million years ago. Cephalaspids had no jaws. Also these fish have plates on their heads to protect them.
The cephalaspids (Cephalaspidida) are an extinct group of fish from the Devonian period which was 419.2 to 358.9 million years ago. Cephalaspids had no jaws. Also these fish have plates on their heads to protect them.
