Siberiaspidoidei
From Palaeos
| Amphiaspidida | |
|
Phylum: Chordata
|
o Cyathaspidiformes `--o Amphiaspidida |--Ctenaspis `--+--Amphiaspidoidei `--+--Hibernaspidoidei `--Siberiaspidoidei |
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| SIBERIASPIDOIDEI |
| Argyraspis | Dotaspis | Litotaspis | Siberiaspis | Tuxeraspis |
