Palaeos:		Cephalaspidomorphi:
The Vertebrates		Dendrogram

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Cephalaspidomorphi: Dendrogram

Abbreviated Dendrogram

Vertebrata
|--Conodonta
`--+--Pteraspidomorphi
   `--Thelodonti
      `--+--+--Katoporida  
         |  `--Cephalaspidomorphi 
         |     |--Galeaspida
         |     |  |--Eugaleaspidiformes
         |     |  `--Polybranchiaspidida
         |     `--+--Pituriaspida
         |        `--+--Osteostraci
         |           |  |--Ateleaspis
         |           |  `--Cornuata
         |           `--Gnathostomata
         |               |--Placodermi
         |               `--Acanthodii (paraphyletic)
         |                  |--Chondrichthyes
         |                  `--Osteichthyes
         `--+--Loganiidae            
            `--Gnathostomata (alternative placement)

Contents

Overview
Cephalaspidomorphi
Osteostraci
Cornuata
Cornuata (2)
Dendrogram
References

(Note - links to Mikko's Phylogeny (MH) need revising; the pages exist but have been moved to different directories - MAK111024)

Vertebrata
|--Conodonta
`--+--Pteraspidomorphi
   `--Thelodonti 
      `--+--+--Katoporida X
         |  `--Cephalaspidomorphi X
         |     |--Galeaspida X MH
         |     |  |--Eugaleaspidiformes •X
         |     |  `--Polybranchiaspidida X
         |     |     |--Polybranchiaspidiformes •X
         |     |     `--Huananaspidiformes •X
         |     `--+--Pituriaspida •X 
         |        `--+--Osteostraci X ToL, MH
         |           |  |--Ateleaspis •X
         |           |  `--+--Hirella •X
         |           |     `--+--Hemicyclaspis •X
         |           |        `--Cornuata X
         |           |           |--Cephalaspidida •X
         |           |           `--+--Zenaspidida •X
         |           |              `--+--Benneviaspidida •X
         |           |                 `--+--Kiaeraspidida •X
         |           |                    `--Thyestiida •X
         |           `--Gnathostomata
         `--+--Loganiidae X
            `--Gnathostomata  (alternative placement)

checked ATW060126