Megalneusaurus

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In 1922, Jack Mason found the two ends of a single leg bone near Puale Bay. They were later submitted to W.R. Smith of the USGS. The bones failed to attract attention at the time and eventually became forgotten storage. Recently rediscovered this marine reptile that was identified as a large short-necked plesiosaur with extremely large jaws. Individuals may have reached lengths of up to 50 feet. (Age: Kimmeridgian)

Diet	Rock Formation	Geologic Age	Million Years Old
Meat-Eating	Naknek Formation	Late Jurassic	152-156

Alaska Location	Height	Length	Weight
Aleutian Peninsula	ft.	ft.	tons