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Unktaheela
Unktaheela was a small, fast-swimming marine reptile that lived in the sea that once covered North America. It had a short neck, a big head with a long snout, and four flippers that worked like paddles. It was one of the smallest plesiosaurs ever found.2
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Unktaheela is the smallest known adult polycotylid plesiosaur, measuring only about 2.3 to 2.6 metres long.2
It had bony ledges over its large eyes that may have shaded them from sunlight, like built-in sunglasses.2
Its skull was wide at the back and short behind the eyes, which helped it spot and catch prey.2
Unktaheela lived about 80 million years ago in the Western Interior Seaway, a shallow sea that split North America in two.2
Scientists think Unktaheela was a visual pursuit predator, meaning it chased its food using its sharp eyesight.2
Dino adituentzat
- Izen zientifikoa
- Unktaheela
- Izendatzailea:
- Clark et al. 20243
- Taldea
- Plesiosauroak
- Familia / klada
- Polycotylidae3
- Sailkapena
- Plesiosauria > Sauropterygia3
- Arroken adina
- 84 eta 72 milioi urte artean (Campanian)3
- Arroka-formazioak
- Sharon Springs3
- Herrialdeak
- AEB3
- Fosil-erregistroak
- 2 The Paleobiology Database datu-basean3
- Aurkikuntza
- Unktaheela was named in 2024 by Robert O. Clark, F. Robin O'Keefe, and Sara E. Slack based on two fossils from Wyoming and South Dakota.31
- Oraindik eztabaidagai
- Scientists are still debating exactly how Unktaheela used its unusual eye ledges and wide skull to hunt.2
Datuak nondik datozen
- Unktaheela (en.wikipedia.org)
- A new genus of small polycotylid plesiosaur from the Upper Cretaceous of the Western Interior Seaway and a clarification of the genus Dolichorhynchops (sciencedirect.com)
- Unktaheela in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.
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Elasmosaurus
Pliosaurus
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Cimoliasaurus
Colymbosaurus
Trinacromerum
Tyrannosaurus
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Ankylosaurus
Parasaurolophus