Archaeonectrus was a plesiosaur, a type of marine reptile. It was not a dinosaur, though it coexisted with many dinosaurs. Archaeonectrus lived during the Early Jurassic. The first Archaeonectrus fossil was discovered in 1865.

All the Archaeonectrus illustrations below were collected from the internet. Enjoy and explore:

Archaeonectrus was described by the following scientific paper(s):
  • P. Egerton. 1854. On some new genera and species of fossil fishes. The Annals and Magazine of Natural History, Second Series 13:433-436
  • R. Owen. 1865. A monograph of the fossil Reptilia of the Liassic formations. Part I, Sauropterygia. Palaeontographical Soceity Monographs 17(75):1-40