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Unit 40: Pteraspidomorphi

The Vertebrates

Cladogram

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Pteraspidomorphi: Cladogram

Abbreviated Cladogram

CRANIATA
|--CONODONTA
`--+--THELODONTI
   |
   Pteraspidomorphi
   |--Arandaspida
   `--Heterostracomorphi
      |--Astraspidae
      `--Heterostraci
         |--Cyathaspidiformes
         |  |--Cyathaspidida 
         |  `--Amphiaspidida
         `--Pteraspidiformes
            |--Pteraspididae
            `--Psammosteida
               |--Drepanaspis
               `--Psammosteidae

Contents

40.000 Overview
40.100 Pteraspidomorphi
40.200 Heterostraci
40.300 Heterostraci (2)
40.500 Amphiaspidida
40.600 Pteraspidiformes
40.800 Psammosteida (1)
40.900 Psammosteida (2)
Cladogram
References

Cladogram

Pteraspidomorphi X ToL, MH, Tax
|--Anatolepis •X
`--+--Arandaspida •X Tax
   `--Heterostracomorphi X
      |--Astraspidae •X Tax
      `--Heterostraci X ToL, Tax
         |--Cyathaspidiformes X MH
         |  |--Corvaspididae X
         |  |  |--Corvaspis •X
         |  |  `--Corveolepis •X
         |  `--+--Cyathaspidida •X Tax
         |     `--Amphiaspidida X
         |        |--Ctenaspis •X
         |        `--+--Amphiaspidoidei •X
         |           `--+--Hibernaspidoidei •X
         |              `--Siberiaspidoidei •X
         `--Pteraspidiformes X MH
            |--Anchipteraspididae •X
            `--Pteraspidida X
               |--Protopteraspididae •X
               `--Pteraspidina X
                  |--Pteraspididae •X MH
                  `--Protaspidoidea X
                     |--Protaspididae •X
                     `--Psammosteida X
                        |--Drepanaspis •X
                        `--+--Guerichosteidae •X
                           `--+--+--Pycnosteidae •X
                              |  `--Psammolepis •X
                              `--Psammosteidae •X MH
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