Subclass
Arandaspida Ritchie et Gilbert-Tomlinson, 1977
Selection of related publications
Gagnier, P. Y., Blieck, A., Rodrigo, G. 1986. First Ordovician vertebrate from South America.  Geobios   19,      629-634. DOI:10.1016/S0016-6995(86)80058-4
Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Chordata | 
| Subphylum | Vertebrata | 
| Superclass | Agnatha | 
| Class | Pteraspidomorphi | 
| Subclass | Arandaspida | 
| Family | Arandaspididae | 
| Sacabambaspidae | |
| Subclass | Heterostraci | 
| Thelodonti |