Marine reptile
Archelon
Archelon was a large marine turtle.
Archelon was a large marine turtle. Its broad flippers and distinctive skeleton are documented by institutional fossil collections.
Three stages. One companion.
Game artwork


AI-generated, stylized game illustrations. These designs and growth stages are imaginative, not scientific reconstructions.
Archelon at a glance
- Diet
- Exact diet not established here
- When it lived
- Late Cretaceous
- Group
- Testudines
- Turtles
- Fossil locations
- Pierre Shale, North America
- Places where fossils have been found
Beyond the game
The real Archelon
Archelon was a large marine turtle. Its broad flippers and distinctive skeleton are documented by institutional fossil collections.
Its shell differed from the rigid domed shell of a land tortoise. Fossil skeletons reveal a marine turtle with broad swimming limbs and a distinctive body construction.
Fossil discoveries
Selected fossil records · present-day map
Map references
Map: Natural Earth, public domain. Fossil records: Paleobiology Database and linked collections and publications.Sources & text credits
Explore the references behind this profile.
- Yale Peabody vertebrate palaeontology collections — Archelon ischyros
- Yale Peabody Central Gallery — Archelon ischyros
Original English Dinosgacha educational summaries informed by the linked scientific and museum references; source publications retain their own rights.