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Mollesaurus
''Mollesaurus'' is an extinct genus of large ophthalmosaurine ophthalmosaurid ichthyosaur known from northwestern Patagonia of Argentina.
==Description==
''Mollesaurus'' is known from the holotype MOZ 2282 V, articulated partial skeleton which preserved partial skull and most of the vertebral column. It was collected in the Chacaico Sur locality from the ''Emileia giebeli'' ammonoid zone of the Los Molles Formation, Cuyo Group, dating to the early Bajocian stage of the Middle Jurassic, about 171.6-170 million years ago. ''Mollesaurus'', along with ''Chacaicosaurus cayi'' which was found at the same locality, are the only diagnostic ichthyosaur specimens from the Aalenian-Bathonian interval. It was found near Zapala city of the Neuquén Basin.〔
Maisch and Matzke (2000) regarded ''Mollesaurus'' to be a species of ''Ophthalmosaurus''. However, all recent cladistic analyses found that ''Mollesaurus'' is a valid genus of ophthalmosaurid. Patrick S. Druckenmiller and Erin E. Maxwell (2010) found it to be the basalmost member of the ophthalmosaurid lineage that include ''Brachypterygius'', ''Caypullisaurus'' and ''Platypterygius'' (but don't include ''Ophthalmosaurus'').〔 Valentin Fischer, Michael W. Maisch, Darren Naish, Ralf Kosma, Jeff Liston, Ulrich Joger, Fritz J. Krüger, Judith Pardo Pérez, Jessica Tainsh and Robert M. Appleby (2012) found it to be the basalmost member of Ophthalmosaurinae.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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