This paleontological restoration is highly hypothetical, as very little fossil material of the animal is known. Use of this image might be controversial.
Reason: Siksika ottae is known only from braincase with eye pigments and teeth, and not known how fins looked different from other petalodonts like Belantsea.
You may ask further questions about the accuracy of this image at the image review page of Wikiproject Palaeontology on the English Wikipedia.
Summary
DescriptionSiksika and Cladodus.png
English: A carboniferous petalodont Siksika ottae escaping from a cladoselachid Cladodus mirabilis
Português: Um petalodonte do Carbonífero, Siksika ottae, escapando de um cladoseláquido, Cladodus mirabilis
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