Radotina
      
Radotina is an extinct genus of placoderm from the early Devonian of Europe.
References
-  Dinosaurs to Dodos: An Encyclopedia of Extinct Animals by Don Lessem and Jan Sovak
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 Dayaoshania Grenfellaspis Sinolepis Vanchienolepis Xichonolepis
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 Heteroyunnanolepis Zhanjilepis Shimenolepis
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 Dianolepis Kirgisolepis Luquanolepis Nawagiaspis Tenizolepis
 |  |  |  | Bothriolepididae | 
 Bothriolepis Briagalepis Grossilepis Monarolepis Vietnamaspis
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 |  |  | Jiangxilepididae | 
 Jiangxilepis Ningxialepis
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 Aethaspis Aleosteus Anarthraspis Baringaspis Bryantolepis Erikaspis Eskimaspis Heightingtonaspis Kujdanowiaspis Lataspis Lehmanosteus Mediaspis Proaethaspis Sigaspis Simblaspis
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 Antarctaspis Qataraspis Yujiangolepis
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 |  |  | Phlyctaenioidei /  Phlyctaenii* | | Phlyctaenididae |  | 
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 |  |  | Arctaspididae |  | 
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 |  |  | Arctolepididae |  | 
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 |  |  | Groenlandaspididae |  | 
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 |  |  | Williamsaspididae |  | 
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 |  |  |  | | Basal brachythoracids
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 Herasmius Heterosteus Tollichthys
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 Angarichthys Cathlesichthys Dhanguura Euleptaspis Euleptaspis Luetkeichthys
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 |  |  | Plourdosteidae | 
 Compagopiscis Gogopiscis ?Kimberleyichthys Menamaraspis ?Plourdosteus
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 |  |  | Torosteidae | 
 Eldenosteus Harrytoombsia Torosteus
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 |  |  | Pachyosteomorphi | |  |  |  |  |  |  | 
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 |  |  | Leptosteidae |  | 
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 |  |  | Rachiosteidae |  | 
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 |  |  |  | | Bungartiidae |  | 
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 |  |  | Mylostomatidae | 
 Dinomylostoma Kendrickichthys Mylostoma Tafilalichthys
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 |  |  | Trematosteidae | 
 Belosteus Brachyosteus Cyrtosteus Parabelosteus Trematosteus
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 |  |  | Dunkleosteoidea |  | 
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