Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Dinosaur-Plesiosaur Free.
This model is a great solution for you looking for a unique dinosaur for your game. It features:
-5 animation clips, including: Float , Swimming , Rotate body , Attack.
-Low Polygon – 3K Verts , 7K Tris.
-AR useful idle animation, All_active
-Close real skin and Awesome Look
Source files (FBX).
Questions and doubts, mail me at: [email protected]