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Ctenaspis dentata by avancna Ctenaspis dentata by avancna
The cyathaspid heterostracan, Ctenaspis dentata, of Early Devonian Canada, is believed to be one of the ancestors of the Siberian Amphiaspids.
Here we see a trio with a trio of the furcacaudian thelodont, Pezopallichthys ritchei
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:icongiant-blue-anteater:
Giant-Blue-Anteater Featured By Owner Jan 12, 2010  Hobbyist Digital Artist
Those furcacaudiforms you drew look more like Pezopallichthys than Cometicercus.
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:iconavancna:
avancna Featured By Owner Jan 12, 2010  Hobbyist Traditional Artist
You're probably right: at the time the reference I used was published, it was unnamed.
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:icongiant-blue-anteater:
Giant-Blue-Anteater Featured By Owner Jan 13, 2010  Hobbyist Digital Artist
As well, Pezopallichthys lived in the Late Silurian, to my knowledge, so it could've been living with completely different animals.
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:iconavancna:
avancna Featured By Owner Jan 13, 2010  Hobbyist Traditional Artist
Now you tell me.
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Submitted on
July 29, 2007
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