Aristonectes
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Aristonectes is an extinct genus of large elasmosaurid plesiosaurs that lived during the Maastrichtian stage of the Late Cretaceous. Two species are known, A. parvidens and A. quiriquinensis, whose fo
Life restoration of A. quiriquinensis swimming with a squid.
Life restoration of an A. parvidens swimming with the ammonite Diplomoceras
Placochelys BW
Nothosaurus BW
Elasmosauridae
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Elasmosauridae, often called elasmosaurs or elasmosaurids, is an extinct family of plesiosaurs that lived from the Hauterivian stage of the Early Cretaceous to the Maastrichtian stage of the Late Cret
Aristonectes
…Aristonectes (meaning "best swimmer") is an extinct genus of large elasmosaurid plesiosaurs that lived during the Maastrichtian stage of the Late Cretaceous. Two species are known, A. parvidens and A. quiriquinensis, whose fossil…
Restoration showing two Elasmosaurus swimming with straight necks
Outdated restoration of Elasmosaurus showing its neck raised above water, by Samuel Wendell Williston, 1914
Gastroliths and bones (right) of an undetermined plesiosaur from Kansas