Definition of Ichthyopterygians. Meaning of Ichthyopterygians. Synonyms of Ichthyopterygians

- true ichthyosaurs. Fossil remains of derived marine ichthyopterygians, and the oldest ichthyopterygian remains to date, are known from the Olenekian aged...
- highly successful ichthyopterygians, which appeared in Early Tri****ic seas, soon diversified. By the Middle Tri****ic, some ichthyopterygians were achieving...
- snout gently tapers, compared to the more rounded one of more derived ichthyopterygians. The postorbital underlaps the elongate posterior process of the postfrontal...
- names, and genera that are no longer considered ichthyopterygian. Non-ichthyosaur ichthyopterygians shall be noted as such. This list contains 109 genera...
- phylogenetic placement of other main groups of fossil sea reptiles – the ichthyopterygians (including ichthyosaurs) and the sauropterygians, which evolved in...
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- studies of ichthyopterygians did not support this dichotomy.: 143  Motani's 1999 cladistic analysis found various Early Tri****ic ichthyopterygians, such as...
- Utatsusaurus is the earliest-known ichthyopterygian....
- sense, as defined by Motani in 1999, differ from their closest basal ichthyopterygian relatives in certain traits. Motani listed a number of these. The external...
-  China Omphalosaurus merriami Valid Maisch Early Tri****ic Sticky Keep Formation  Norway A species of a possible ichthyopterygian genus Omphalosaurus....