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Unktaheela specta inhabited the Western Interior Seaway during the Late Cretaceous period, approximately 80.5 million years ago. This marine reptile is a type of polycotylid, a plesiosaur family that evolved during the Early Cretaceous and diversified into several genera during the Late Cretaceous. "Polycotylida is a Cretaceous marine reptile from the superfamily Plesiosauroidea," said lead author Dr. Robert Clark and his colleagues at Marshall University.
"ungkap Dr. Robert Clark." translates to "revealed Dr. Robert Clark."
"\u201cPolycotylids have a plesiosaurus-like bauplan with a wide hydrodynamic body, short tail, four modified limbs that serve as large paddles, and expanded chest and pelvic girdles. However, they also have derived traits such as a short neck and a large head with an elongated snout.\u201d \u201cAlthough these characteristics are convergent with pliosaurids, the smaller gaps and teeth in most polycotylids indicate that they occupy a different ecological niche.\u201d"
Two fossil skulls (holotype and paratype) of Unktaheela specta were found in the Baculites obtusus zone in the Sharon Springs Formation in the United States.
Source: Sci.news
Unktaheela specta is a small polycotyledon, with a length between 2.3 and 2.6 m (7.5-8.5 feet) with a wide skull and unique fins.
This reptile has a flat area above its large eyes, protecting it from the sunlight. It may hunt its prey visually just below the water surface.
Source: Sci.news
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