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Ctenaspis dentata

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Description

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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2716x1944px 5.94 MB
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Comments4
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Giant-Blue-Anteater's avatar
Those furcacaudiforms you drew look more like Pezopallichthys than Cometicercus.