Protostega Juvenile or New Species


Protostega sp.

Locality: Kansas
Formation: Niobrara
Flipper Span: 1.5 m (5 feet)
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Protostega Scale


Protostega is one of the largest turtle genera to have ever existed. This individual appears to be a much smaller species or juvenile individual. This extinct sea turtle appears to be similar to the extant leatherback sea turtle, and probably filled a similar niche. Protostega probably fed on marine invertebrates like jellyish and small cephalopods as it cruised the Late Cretaceous Western Interior Seaway.

Protostega juvenile