: a genus of very large extinct marine turtles from the Cretaceous of South Dakota having a well-developed plastron but poorly developed carapace

Word History


New Latin, probably irregular from archi- + Greek chelōnē tortoise; akin to Greek chelys tortoise

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Dictionary Entries Near Archelon

Cite this Entry

“Archelon.” Dictionary, Merriam-Webster, Accessed 24 Jun. 2024.

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