Definition of Elasmosaurids. Meaning of Elasmosaurids. Synonyms of Elasmosaurids

- alongside Polycotylidae. The earliest elasmosaurids were mid-sized, about 6 m (20 ft). In the Late Cretaceous, elasmosaurids grew as large as 11.5–12 m (38–39 ft)...
- 18th. The usual number of tail vertebrae in elasmosaurids is 30. Since the last tail-vertebrae of elasmosaurids were fused into a structure similar to the...
- elongated heads with narrow snouts. During the Late Cretaceous, the elasmosaurids still had many species. All plesiosaurs became extinct as a result of...
- 5 cm (1 ft 2.8 in) long. It can be distinguished from all other known elasmosaurids by a unique combination of characteristics as well as two otherwise...
- range of 6.4–9.2 metres (21–30 ft). It can be distinguished from other elasmosaurids by the following characteristics: there is a long distance between the...
- Albertonectes is also unique among other elasmosaurids in having 76 neck vertebrae, a record number among elasmosaurids. Callawayasaurus with a similar count...
- Plesiosauria) in the Cenomanian: Implications for relationships of elasmosaurids of the Western Interior Seaway". Journal of Systematic Palaeontology...
- plesiosaur, named by Welles in 1943. Thal****omedon is among the largest elasmosaurids, with the holotype measuring 10.86 metres (35.6 ft) long and weighing...
- It is one of the most recently known elasmosaurids to have lived in North America. Unlike other elasmosaurids, it has a relatively short neck. In November...
- an elasmosaurid (the remains of short-necked plesiosaurs are more common in comparable rocks in Canada). The remains of comparable elasmosaurids are...