| NOUN | animal | osteostracan, cephalaspid | extinct jawless fish of the Devonian with armored head |
|---|
| Meaning | Extinct jawless fish of the Devonian with armored head. | |
|---|---|---|
| Synonym | cephalaspid | |
| Member of | Osteostraci, suborder Osteostraci, Cephalaspida, suborder Cephalaspida | Extinct group of armored fish-like vertebrates |
| Broader | jawless vertebrate, jawless fish, agnathan | eel-shaped vertebrate without jaws / jaws or paired appendages including the cyclostomes and some extinct forms |
| Spanish | cephalaspid, osteostracan | |
| Catalan | cephalaspid, osteostracan | |
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