Plectronoceras
Plectronoceras is the earliest known shelled cephalopod, dating to the Late Cambrian.[1][2][3] None of the fossils are complete, and none show the apex or aperture of the shell.[3] Approximately ha...
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Walking with Evolution
Walking with Evolution is a documentary show about the ancient past about first sea life, the beginning of the reptiles, the great dying, rise and fall of the dinosaurs, and then rise and region of...
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