164 genera are assigned to the class PLACODERMI
| Order | Genus | FOP | FOS | LOP | LOS |
|---|
| ACANTHOTHORACI | Breizosteus | D | Sieg | D | Sieg |
| ACANTHOTHORACI | Dobrowlania | D | Gedi-u | D | Gedi-u |
| ACANTHOTHORACI | Kimaspis | D | Gedi-l | D | Gedi-l |
| ACANTHOTHORACI | Kolymaspis | D | Emsi | D | Emsi |
| ACANTHOTHORACI | Kosoraspis | D | Gedi | D | Sieg-l |
| ACANTHOTHORACI | Murrindalaspis | D | Emsi | D | Emsi |
| ACANTHOTHORACI | Palaeacanthaspis | D | Gedi-u | D | Gedi-u |
| ACANTHOTHORACI | Radotina | D | Gedi | D | Sieg |
| ACANTHOTHORACI | Romundina | D | Gedi-u | D | Gedi-u |
| ACANTHOTHORACI | Weejasperaspis | D | Emsi | D | Emsi |
| ANTIARCHA | Grossaspis | D | Give | D | Give |
| ANTIARCHA | Jiangxilepus | D | Fame | D | Fame |
| ANTIARCHA | Lepadolepis | D | Fras-u | D | Fras-u |
| ANTIARCHA | Liujiangolepis | D | Sieg | D | Sieg |
| ANTIARCHA | Phymolepis | D | Gedi | D | Gedi |
| ANTIARCHA | Qujinolepis | D | Gedi | D | Gedi |
| ANTIARCHA | Sinolepis | D | Fame | D | Fame |
| ANTIARCHA | Taeniolepis | D | Fras | D | Fras |
| ANTIARCHA | Xichonolepis | D | Fame | D | Fame |
| ANTIARCHA | Yunnanolepis | D | Gedi | D | Sieg |
| ANTIARCHA | Zhanjilepis | D | Gedi | D | Gedi |
| ARTHRODIRA | Aficanaspis | D | Fame | D | Fame |
| ARTHRODIRA | Arctonema | D | Eife | D | Eife |
| ARTHRODIRA | Arenipiscis | D | Emsi | D | Emsi |
| ARTHRODIRA | Aspidichthys | D | Fras-u | D | Fame |
| ARTHRODIRA | Atlantidosteus | D | Emsi-u | D | Emsi-u |
| ARTHRODIRA | Belemnacanthus | D | m | D | m |
| ARTHRODIRA | Belosteus | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Brachydeirus | D | Fras-m | D | Fras-u |
| ARTHRODIRA | Brachyosteus | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Braunosteus | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Bruntonichthys | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Buchanosteus | D | Emsi | D | Emsi |
| ARTHRODIRA | Bullerichthys | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Bungartius | D | Fame-u | D | Fame-u |
| ARTHRODIRA | Burrinijucosteus | D | Emsi | D | Emsi |
| ARTHRODIRA | Callognathus | D | Fras | D | Fame |
| ARTHRODIRA | Camuropiscis | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Copanognathus | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Cosmacanthus | D | Fras | D | Fame |
| ARTHRODIRA | Cyrtosteus | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Deirosteus | D | Eife | D | Fras |
| ARTHRODIRA | Deveonema | D | Fras-m | D | Fras-m |
| ARTHRODIRA | Dinichthys | D | Fras-m | D | Fras-m |
| ARTHRODIRA | Dinomylostoma | D | Fras-l | D | Fras-m |
| ARTHRODIRA | Diplognathus | D | Fame | D | Fame |
| ARTHRODIRA | Dunkleosteus | D | Give | D | Fame-u |
| ARTHRODIRA | Eastmanosteus | D | Eife-u | D | Fame-l |
| ARTHRODIRA | Eldenosteus | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Enseosteus | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Errolosteus | D | Emsi | D | Emsi |
| ARTHRODIRA | Erromenosteus | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Eskimaspis | D | Gedi-u | D | Gedi-u |
| ARTHRODIRA | Fallacosteus | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Gemuendenaspis | D | Emsi-l | D | Emsi-l |
| ARTHRODIRA | Glyptaspis | D | Fame-u | D | Fame-u |
| ARTHRODIRA | Goodradigbeeon | D | Emsi | D | Emsi |
| ARTHRODIRA | Gorgonichthys | D | Fame-u | D | Fame-u |
| ARTHRODIRA | Grazosteus | D | m | D | m |
| ARTHRODIRA | Groenlandaspis | D | Fras | D | Fame-u |
| ARTHRODIRA | Gymnotrachelus | D | Fame-u | D | Fame-u |
| ARTHRODIRA | Gyroplacosteus | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Hadrosteus | D | Fras-m | D | Fras-m |
| ARTHRODIRA | Harrytoombsia | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Heintzichthys | D | Fras-l | D | Fame-u |
| ARTHRODIRA | Heterosteus | D | Give-u | D | Give-u |
| ARTHRODIRA | Holdenius | D | Fame-u | D | Fame-u |
| ARTHRODIRA | Hollardosteus | D | Give-u | D | Give-u |
| ARTHRODIRA | Holonema | D | Eife | D | Fras-m |
| ARTHRODIRA | Hussakofia | D | Fame-u | D | Fame-u |
| ARTHRODIRA | Incisoscutum | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Kendrichthys | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Kiangyousteus | D | Give | D | Give |
| ARTHRODIRA | Kimberia | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Kimberleyichthyes | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Kweichowlepis | D | Sieg | D | Sieg |
| ARTHRODIRA | Latocamurus | D | Fras | D | Fras |
| ARTHRODIRA | Laurentaspis | D | Emsi | D | Eife |
| ARTHRODIRA | Leptosteus | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Machaerognathus | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Malerosteus | D | Fras | D | Fras |
| ARTHRODIRA | Mcnamaraspis | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Megaloplax | D | Fras | D | Fras |
| ARTHRODIRA | Melanosteus | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Microsteus | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Murmur | D | Sieg | D | Sieg |
| ARTHRODIRA | Mylostoma | D | Fame-u | D | Fame-u |
| ARTHRODIRA | Operchaliosteus | D | Fras-m | D | Fras-m |
| ARTHRODIRA | Overtonaspis | D | Sieg-l | D | Sieg-l |
| ARTHRODIRA | Oxyosteus | D | Fras-m | D | Fras-u |
| ARTHRODIRA | Pachyosteus | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Panxiosteus | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Parabelosteus | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Parabuchanosteus | D | Emsi | D | Emsi |
| ARTHRODIRA | Paramylostoma | D | Fame-u | D | Fame-u |
| ARTHRODIRA | Pholidosteus | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Platyaspis | D | Fras | D | Fras |
| ARTHRODIRA | Plourdosteus | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Prescottaspis | D | Sieg-l | D | Sieg-l |
| ARTHRODIRA | Qataraspis | D | l | D | l |
| ARTHRODIRA | Rachiosteus | D | Give-u | D | Fras-l |
| ARTHRODIRA | Rhenonema | D | Give | D | Give |
| ARTHRODIRA | Rhinosteus | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Rolfosteus | D | Fras | D | Fras |
| ARTHRODIRA | Selenosteus | D | Fame-u | D | Fame-u |
| ARTHRODIRA | Squamatognathus | D | Eife-u | D | Eife-u |
| ARTHRODIRA | Stenosteus | D | Fame-l | D | Fame-u |
| ARTHRODIRA | Stuertzaspis | D | Emsi-l | D | Emsi-l |
| ARTHRODIRA | Synauchenia | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Taemasosteus | D | Emsi | D | Fras-m |
| ARTHRODIRA | Tafilalichthys | D | Fame-l | D | Fame-l |
| ARTHRODIRA | Tapinosteus | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Taunaspis | D | Sieg | D | Sieg |
| ARTHRODIRA | Tiaraspis | D | Sieg-u | D | Sieg-u |
| ARTHRODIRA | Timanosteus | D | Fras | D | Fras |
| ARTHRODIRA | Titanichthys | D | Fame-l | D | Fame-u |
| ARTHRODIRA | Toombsosteus | D | Emsi | D | Emsi |
| ARTHRODIRA | Torosteus | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Trachosteus | D | Fame-u | D | Fame-u |
| ARTHRODIRA | Trematosteus | D | Fras-u | D | Fras-u |
| ARTHRODIRA | Tropidosteus | D | Give | D | Give |
| ARTHRODIRA | Tubonasus | D | Fras-l | D | Fras-l |
| ARTHRODIRA | Wheathillaspis | D | Sieg-l | D | Sieg-l |
| ARTHRODIRA | Williamsaspis | D | Emsi | D | Emsi |
| ARTHRODIRA | Yinosteus | D | Give | D | Give |
| BRINDABELLASPIDA | Brindabellaspis | D | Emsi | D | Emsi |
| PETALICHTHIDA | Diandongpetalichthys | D | Gedi | D | Gedi |
| PETALICHTHIDA | Ellopetalichthys | D | Give | D | Give |
| PETALICHTHIDA | Epipetalichthys | D | Fras-u | D | Fras-u |
| PETALICHTHIDA | Eurycaraspis | D | Give | D | Give |
| PETALICHTHIDA | Litilpetalichthyes | D | Eife | D | Eife |
| PETALICHTHIDA | Lunaspis | D | Emsi-u | D | Emsi-u |
| PETALICHTHIDA | Macropetalichthys | D | Eife-l | D | Give |
| PETALICHTHIDA | Neopetalichthys | D | Emsi | D | Emsi |
| PETALICHTHIDA | Notopetalichthys | D | Emsi | D | Emsi |
| PETALICHTHIDA | Quasipetalichthys | D | Give | D | Give |
| PETALICHTHIDA | Shearsbyaspis | D | Emsi | D | Emsi |
| PETALICHTHIDA | Wijdeaspis | D | Emsi | D | Eife |
| PETALICHTHIDA | Xinanpetalichthyes | D | Eife | D | Eife |
| PSEUDOPETALICHTHIDA | Nessariostoma | D | Emsi-l | D | Emsi-l |
| PSEUDOPETALICHTHIDA | Paraplesiobatis | D | Emsi-l | D | Emsi-l |
| PSEUDOPETALICHTHIDA | Pseudopetalichthys | D | Emsi-l | D | Emsi-l |
| PTYCTODONTIDA | Campbellodus | D | Fras-l | D | Fras-l |
| PTYCTODONTIDA | Chelyophorus | D | Fras | D | Fame |
| PTYCTODONTIDA | Ctenurella | D | Fras-l | D | Fras-l |
| PTYCTODONTIDA | Denisonodus | D | Fras-l | D | Fras-l |
| PTYCTODONTIDA | Desmoporella | D | Eife | D | Give |
| PTYCTODONTIDA | Eczematolepis | D | Eife | D | Fras-m |
| PTYCTODONTIDA | Goniosteus | D | Eife | D | Eife |
| PTYCTODONTIDA | incertae sedis | D | Gedi | D | Sieg |
| PTYCTODONTIDA | Palaeomylus | D | Eife-l | D | Fras |
| PTYCTODONTIDA | Ptyctodopsis | D | Fras-l | D | Fras-l |
| PTYCTODONTIDA | Ptyctodus | D | Eife-l | C | Tour-l |
| PTYCTODONTIDA | Rhynchodus | D | Eife | C | Tour-l |
| PTYCTODONTIDA | Tollodus | D | Sieg | D | Sieg |
| RHENANIDA | Asterosteus | D | Eife | D | Eife |
| RHENANIDA | Boliosteus | D | m | D | m |
| RHENANIDA | Gemuendina | D | Emsi-l | D | Emsi-l |
| RHENANIDA | Jagorina | D | Fras-u | D | Fras-u |
| RHENANIDA | Ohioaspis | D | Emsi | D | Give-u |
| STENSIOELLIDA | Stensioella | D | Emsi-l | D | Emsi-l |
| uncertain | Antineosteus | D | Emsi-u | D | Emsi-u |
| uncertain | Nessariostoma | D | Emsi-l | D | Emsi-l |
| uncertain | Oestophorus | D | Give | D | Fras |
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FOP = Period of first occurrence
FOS = Stage of first occurrence
LOP = Period of last occurrence
LOS = Stage of last occurrence
Stage abbreviations follow Sepkoski (2002).