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Callawayasaurus
Callawayasaurus was a long-necked marine reptile that swam in the seas of what is now Colombia. It was not a dinosaur, but a plesiosaur with a small head and a very long neck. It used its four flippers to paddle through the water.1
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Callawayasaurus had a skull only 35 centimetres (1 foot 2 inches) long, but its whole body was about 7 to 8 metres (24 to 26 feet) long.1
Its neck contained 56 vertebrae, which is a lot, but they were shorter than the neck bones of other elasmosaurids.1
The nostrils of Callawayasaurus were long and positioned above the upper jaw bone, which had 3 to 5 teeth.1
It lived during the Early Cretaceous period, about 125 to 112 million years ago.1
The first fossils were found in the Paja Formation near Villa de Leyva, Colombia.1
A second, nearly complete skeleton was slightly more robust than the first, which might mean males and females looked a bit different.1
Callawayasaurus was named after paleontologist Jack M. Callaway, who studied ancient marine reptiles.1
Callawayasaurus: gehien egindako galderak
Dino adituentzat
- Izen zientifikoa
- Callawayasaurus
- Izendatzailea:
- Carpenter 19994
- Taldea
- Plesiosauroak
- Familia / klada
- Elasmosauridae4
- Sailkapena
- Plesiosauria > Elasmosauridae > Sauropterygia4
- Arroken adina
- 121 eta 120 milioi urte artean (Aptian)4
- Herrialdeak
- Kolonbia4
- Fosil-erregistroak
- 2 The Paleobiology Database datu-basean4
- Aurkikuntza
- The first fossil was described by Samuel Paul Welles in 1962, who called it Alzadasaurus colombiensis. In 1999, Kenneth Carpenter moved it to its own genus, Callawayasaurus.1
- Oraindik eztabaidagai
- Scientists are not sure if the slightly more robust skeleton is a different species or just a male or female of the same species.1
Datuak nondik datozen
- Callawayasaurus (en.wikipedia.org)
- PBDB Taxon (paleobiodb.org)
- Callawayasaurus (www2.sgc.gov.co)
- Callawayasaurus in The Paleobiology Database (CC BY 4.0): adina, tokiak, arroka-formazioak, sailkapena.
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