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Ophthalmosauridae

Ophthalmosauridae
Temporal range: Middle Jurassic-Late Cretaceous, 171.6–93.5 Ma
OphthalmosaurusIcenius-NaturalHistoryMuseum-August23-08.jpg
Ophthalmosaurus icenicus skeleton
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Ichthyosauria
Clade: Baracromia
Family: Ophthalmosauridae
Baur, 1887
Subgroups

See text.

Synonyms

Opthalmosauria


See text.

Opthalmosauria

Ophthalmosauridae is an extinct family of thunnosaur ichthyosaurs from the Middle Jurassic to the early Late Cretaceous (Bajocian - Cenomanian) of Asia, Australia, Europe, North America and South America. Currently, the oldest known ophthalmosaurid is Mollesaurus from the early Bajocian of Argentina. Named by George H. Baur, in 1887, it contains the basal taxa like Ophthalmosaurus. Appleby (1956) named the taxon Ophthalmosauria which was followed by some authors, but these two names are synonyms, Ophthalmosauridae has the priority over Ophthalmosauria.

Ophthalmosauridae is a node-based taxon defined by Ryosuke Motani (1999) as "the last common ancestor of Brachypterygius extremus and Ophthalmosaurus icenicus and all of its descendants". The definition he proposed for Ophthalmosauria was exactly the same. In this case both definitions are synonyms. The cladogram below follows the topology from a 2010 analysis by Patrick S. Druckenmiller and Erin E. Maxwell.

Ichthyosaurus

Stenopterygius

"Ophthalmosaurus" natans

Aegirosaurus


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Wikipedia

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