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Webster 1913 Edition
Ichthyosauria
‖
Ichˊthy-o-sau′ri-a
,Noun.
pl.
[NL. See
Ichthyosaurus
.] (Paleon.)
An extinct order of marine reptiles, including Ichthyosaurus and allied forms; – called also
Ichthyopterygia
. They have not been found later than the Cretaceous period.