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

Laaj yi ñu gën a laaj ci Callawayasaurus
Ngir ñi xam dino lool
- Turu xam-xam
- Callawayasaurus
- Ku ko tudde
- Carpenter 19994
- Kurél
- Plesiyosoor yi
- Njaboot / klad
- Elasmosauridae4
- Klasifikasiyoŋ
- Plesiosauria > Elasmosauridae > Sauropterygia4
- Màggaayu doj yi
- 121 ba 120 milyoŋ at (Aptian)4
- Réew yi
- Kolombi4
- Fosil yu ñu gis
- 2 ci The Paleobiology Database4
- Gisees
- 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
- Ñu ngi koy werante ba tey
- 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
Fa xibaar yi jóge
- Callawayasaurus (en.wikipedia.org)
- PBDB Taxon (paleobiodb.org)
- Callawayasaurus (www2.sgc.gov.co)
- Callawayasaurus in The Paleobiology Database (CC BY 4.0): at, béréb yi, formasiyoŋi doj, klasifikasiyoŋ.
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