Ark Lost Island Mosasaur and Tusoteuthis Locations

In general, the Mosasaur and Tusoteunthis spawns occur on the edge of the world border on Lost Island map of Ark Survival Evolved.  Below are a few of the locations where I have seen them.  Hopefully, it helps narrow down where you might find them. It isn't meant to be a comprehensive list, but should help you find some of Ark's creatures.  I tend to find more Moses and squid on the western border of the map and by the desert biome.  

Mosa
Lat     Lon
10.9   82.1
36.0   7.8
82.7   14.1
84.6   14.1

Tusoteuthis (squid) 

14.1   13.9

13.7   19.1

Finding a Mosa in the depths of the Lost Island