Placodermi
perekond

Tollodus Mark-Kurik, 1977

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Valik taksonit käsitlevast teaduskirjandusest
Mark-Kurik, E. 1977. Stroenie plečevogo poâsa rannih ptiktodontov.Očerki po filogenii i sistematike ryb i besčelûstnyh , pp. 61-70. Наука.
Klassifikatsioon
Levik kirjandusandmetel