Engelsk navneord: heterostracan | |||
| 1. | heterostracan (om dyr) extinct jawless fish with the anterior part of the body covered with bony plates; of the Silurian and Devonian | ||
| Mindre specifikke termer | agnathan, jawless fish, jawless vertebrate | ||
| Tilhører disse overordnede termer | Heterostraci, suborder Heterostraci | ||