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Coccosteina
Coccosteina
is an
extinct
infraorder
of
placoderms
,
armored fish
most
diverse
during the
Devonian
.
Systematics
Basal
genus
Maideria
Basal genus
Xiangshuiosteus
Superfamily
Buchanosteoidea
*
Family
Buchanosteidae
Superfamily
Gemuendenaspoidea
* Family
Gemuendenaspidae
Superfamily
Homosteoidea
* Family
Homostiidae
Superfamily
Brachydeiroidea
* Family
Brachydeiridae
* Family
Leptosteidae
Superfamily
Coccosteoidea
* Family
Pholidosteidae
* Family
Coccosteidae
* Family
Plourdosteidae
* Family
Torosteidae
* Family
Incisoscutidae
* Family
Camuropiscidae
Superfamily
Dinichthyloidea
* Family
Hadrosteidae
* Family
Dinichthyidae
* Family
Trematosteidae
* Family
Rhachiosteidae
* Family
Titanichthyidae
* Family
Bungartiidae
* Family
Selenosteidae
* Family
Mylostomatidae