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  1. Archelon - Wikipedia

    Archelon is an extinct marine turtle from the Late Cretaceous, and is the largest turtle ever to have been documented, with the biggest specimen measuring 4.6 m (15 ft) from head to tail and 2.2–3.2 t …

  2. Archelon: The Giant Sea Turtle of the Cretaceous Period

    Archelon was a prehistoric sea turtle that lived during the Late Cretaceous period, approximately 70 to 80 million years ago. It is believed that Archelon lived in the shallow seas that covered much of what …

  3. ARCHELON - Τhe Sea Turtle Protection Society of Greece

    It was founded by ARCHELON with the support of the Municipality of Glyfada and the Ministry of the Environment and is one of the first Sea Turtle Rescue Centers in the Mediterranean and the only one …

  4. Archelon | Giant Sea Turtle, Extinct Species & Prehistoric Reptile ...

    Archelon, extinct giant sea turtle known from fossilized remains found in North American rocks of the Late Cretaceous epoch (100 million to 66 million years ago).

  5. This prehistoric sea monster was the size of a car, weighed the same as ...

    Aug 26, 2025 · Archelon belongs to a group of sea turtles known as the protostegids. This group first appeared in the Early Cretaceous and were characterised not only by their large size and leathery …

  6. Archelon: The Prehistoric Giant Turtle - Ocean Info

    Archelon Ischyros, commonly known as Archelon, was a prehistoric giant sea turtle whose fossilized remnants were discovered in Late Cretaceous strata in North America 100 million to 66 million years …

  7. Archelon Turtle Animal Facts - Archelon ischyros - A-Z Animals

    May 27, 2024 · Archelon (Archelon ischyros) is a giant protostegid marine turtle (Protostegidae, not Cheloniidae), one of the largest: about 4 m long, flippers several meters, carapace about 2–2.5 m.

  8. When Did the Archelon Go Extinct & Why? - Biology Insights

    Aug 19, 2025 · The ancient oceans were home to the Archelon, a colossal sea turtle that navigated the waters when dinosaurs still roamed the Earth. Its immense size made it a prominent figure in …

  9. Archelon - Prehistoric Wildlife

    Aug 6, 2013 · – Skeleton of the Rare Giant Sea Turtle, Archelon, Recovered from the Cretaceous DeGrey Member of the Pierre Shale near Cooperstown, Griggs County, North Dakota.

  10. Archelon ischyros – the largest known turtle - Museum of Idaho

    Here is a brief story about the largest turtle ever – Archelon ischyros, or “ruler turtle.” Full title: “A medical scan reveals the secrets of New Zealand’s extinct marine reptiles, almost 150 years after the …