Find a spino ( they spawn in redwood water and other water place)

Find a great spot ( but carefull they strong fast and can climb big roack) like in the rock

Start ataking him with tranq arow ( you can wait until spino hunt so you can atack him savely

Wait until he unsonsious and give him raw fish meat

Or argen kibble

And this is item you nead to prepare

Tranq arrow

Raw fish meat

Narcotic

Argen kibble

Spino saddle ( spino saddle unlock in lvl 71)