Talk:Elasmosauridae

Originate inconcequence
I see that the Elasmosauridae's a family coming out of the superfamily Plesiosauroidea, but according to the articles, the Plesiosauroidea arose 190 Ma while the Elasmosauridae arose 210 Ma. One of these values can't be true, because it is impossible for a family to be older than the superfamily where it is part of. Niels de Groot (talk) 23:36, 20 December 2014 (UTC)

External links modified
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