Archelon Mating stock image
A pair of the giant marine turtle Archelon mate near the surface of a sea that cut through the American Great Plains during the Late Cretaceous. The long ridges and leathery shell of Archelon resemble living leatherback turtles, but they were actually part of a completely extinct lineage of turtles, the protostegids.
Illustration by Anthony Hutchings
Archelon Mating stock image
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