Palaeos:		Placodermi
The Vertebrates		Overview

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Placodermi

Abbreviated Dendrogram

Gnathostomata
|  `--Acanthodii etc (if traditional placement)
|
Placodermi
  |?==Acanthothoraci
  |--Rhenanida
  `--+--Antiarchi
     |  |--Yunnanolepidoidei
     |  `--EuantiarchaAntiarchi
     `--+--+--Petalichthyida
        |  `--Ptyctodontida
        `--+--Arthrodira
           ?  |--Actinolepidoidei
           |  `--+--Phlyctaenioidei
           |     `--+--Brachythoraci
           |        `--+--Coccosteomorphi
           |           `--+--Pachyosteomorphi
           |              `--Aspinothoracidi
           `==Acanthodii
              |--Chondrichthyes
              `--Osteichthyes

Contents

Overview
Placodermi
Acanthothoraci
Rhenanida
Antiarcha
Petalichthyida
Ptyctodontida
Arthrodira
Actinolepidoidei
Phyllolepida
Phlyctaenioidei
Brachythoraci
Coccosteomorphi
Pachyosteomorphi
Aspinothoracidi
Dendrogram
References

Homosteus milleri (length at least 1.5 meters) (Arthrodira : Brachythoraci) with two Pterichthyodes milleri (Antiarch : Asterolepidoidei). Artwork by Dmitry Bogdanov. Wikipedia, GNU Free Documentation/Creative Commons Attribution license. The species name of both animals honours Scottish geologist and paleontologist Hugh Miller, who first discovered this and many other species of Devonian fish

MAK111027