Definition of Plesiosaurs. Meaning of Plesiosaurs. Synonyms of Plesiosaurs

- The Plesiosauria or plesiosaurs are an order or clade of extinct Mesozoic marine reptiles, belonging to the Sauropterygia. Plesiosaurs first appeared in...
- are no longer considered plesiosaurs. The list currently includes 208 genera. There is no official, canonical list of plesiosaur genera but one of the most...
- Elasmosauridae is an extinct family of plesiosaurs, often called elasmosaurs. They had the longest necks of the plesiosaurs and existed from the Hauterivian...
- now plesiosaurs are recognized as highly derived marine reptiles descended from terrestrial ancestors. Early researchers thought that plesiosaurs laid...
- out except for the plesiosaurs. During the Early Jur****ic, these diversified quickly into both long-necked small-headed plesiosaurs proper, and short-necked...
- of plesiosaur crossed the Tri****ic–Jur****ic boundary. Plesiosaurs were already diverse in the earliest Jur****ic, with the majority of plesiosaurs in the...
- belong to the latter. Gastroliths are frequently found ****ociated with plesiosaurs. The first complete plesiosauroid skeletons were found in England by...
- sirenians. It was present in many marine reptiles, such as ichthyosaurs and plesiosaurs. Lipid-rich, collagen fiber-laced blubber comprises the hypodermis and...
- samples were found for large animals such as catfish, Greenland sharks, or plesiosaurs. Many scientists now believe that giant eels account for many, if not...
- Pliosauroidea is an extinct clade of plesiosaurs, known from the earliest Jur****ic to early Late Cretaceous. They are best known for the subclade Thal****ophonea...