| Astraspida Temporal range: Middle Ordovician |
|
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Superclass: | Pteraspidomorphi |
| Class: | Pteraspida |
| Subclass: | Astraspida Berg, 1940 |
| Orders | |
|
Astraspidiformes Berg, 1940 |
|
Astraspida are an extinct marine taxon of vertebrate which lives in the Middle Ordovician. They are often grouped together with the Arandaspidida.[1]