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meaning: "Before Aigialosaurus"
Named By: Kuhn in 1958
Time Period: Late Jurassic
Location: Germany - Solnhofen Limestone
Size: Probably no more than a meter long
Diet: Piscivore/carnivore
Fossil(s): Skull fragments
Classification: | Chordata | Reptilia | Diapsida | Lepidosauria |

Proaigialosaurus is an extinct genus of semi-aquatic diapsid reptile. The genus was erected by Kuhn (1958), based upon skull fragments, which have since been lost.

Generally considered the oldest specimen of the lizard family Aigialosauridae, others have considered it to be a pleurosaurid, a marine sphenodontian (the order to which the extant Tuatara belongs).

Proaigialosaurus was discovered in the Solnhofen limestone formation of Bavaria, Germany. It was small (less than a metre long).

Read more about Proaigialosaurus at Wikipedia
PaleoCodex is a weekend hack by Saurav Mohapatra