elasmosaur


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elasmosaur

(ɪˈlæzməˌsɔː)
n
(Animals) a very long-necked extinct marine reptile: a type of plesiosaur
[C19: from Greek elasmos metal plate + sauros lizard]
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It took decades for researchers to recover the 70-million-year-old remains of the elasmosaur, which would have weighed as much as 15 tons.
This 40-ft long elasmosaur - found on a small, desolate island off Antarctica - is believed to be the heaviest of its kind, and it is one of the most complete ancient reptile fossils ever discovered on the southernmost continent.
Researchers believe the creature belongs to the genus Aristonectes, which was considered an outlier to other elasmosaurs because they have shorter necks and a larger skull.
Elasmosaurs had long necks, snake-like heads and four flippers
bradti is an elasmosaur - carnivores "with small heads and paddle-like limbs," the report said.
A new species of elasmosaur from the Aptian of Colombia and a review of the Cretaceous plesiosaurs University of California Publications in Geological Sciences 44 (1): 1-96, pls 1-4.
A new elasmosaur from the Eagle Ford Shale of Texas: The elasmosaur and its environment.
In comparison to other plesiosaur teeth, these specimens are most similar to the teeth of elasmosaurs: they have a smooth outer surface and crenulated inner surface, with crenulations that extend nearly to the tip of the tooth.
Comparativement aux autres dents de plesiosaures, ces specimens ressemblent beaucoup aux dents d'elasmosaures: leur surface exterieure est lisse et leur surface interieure est crenelee, les crenulations s'etendant presque jusqu'a la pointe de la dent.
Mots cles: Cretace superieur, ile Axel Heiberg, elasmosaures, paleoclimat, paleoenvironnement
The perfectly preserved 15ft-long elasmosaur skeleton represents a 30 million year missing link in the family tree of the squid-eating marine reptile that has been baffling scientists for decades.
THE WAY THEY WERE: How the Elasmosaur sea creature looked