Guys the best way to kill these guys is

Go in water and get out and they will comme to you

Get them near shore

After that go in water again and come out

These dumbos will follow u on land and die

(This worked for me on mobile)

The only use they have is bio toxin it's better than narcotics

I'm Tiger and press the trang arrow attacking the dimmorphodon if u like it and to help newbies