Francais | English | Espanõl

From Wikipedia, the free encyclopedia

iElasmosauridae Fossil range: Early Jurassic -Late Cretaceous
Conservation status
Extinct (fossil) </div>
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: Plesiosauria Suborder: Plesiosauroidea Family: Elasmosauridae Cope, 1869
Genera
Morenosaurus</br> Occitanosaurus</br> Microcleidus</br> Aristonectes</br> Orophosaurus</br> Woolungasaurus</br> Ogmodirus</br> Fresnosaurus</br> Piptomerus</br> Goniosaurus</br> Mauisaurus</br> Aphrosaurus</br> Hydrotherosaurus</br> Hydralmosaurus</br> Terminonatator</br> Tuarangisaurus</br> Thalassomedon</br> Elasmosaurus</br> Brancasaurus</br> Callawayasaurus</br> Libonectes</br> Styxosaurus</br>

Elasmosauridae was the taxonomic family of the most advanced plesiosaurs. They had the longest necks of the plesiosaurs and survived from the Early Jurassic to the end of the Cretaceous.

[edit] Size

The earliest elasmosaurids were small: about 3 m. At the end of the Cretaceous, elasmosaurids grew as large as 14 m., such as Elasmosaurus. Their necks were the longest of all the plesiosaurs.

[edit] References

http://www.palaeos.com/Vertebrates/Units/220Lepidosauromorpha/220.700.html#Elasmosauridaepl:Elasmozaury