To find the prime meat to tame it you can just go to Death Island on the Island and there are carnos and rexes plus argies galore. Plus you can just use an argentavis taming pen to tame this beast, just you have to lure the griffin there with a pteranodon.
For taming a griff you need to be one of three things.
1 lvl 85 or above
2 have the crown skin equipped
3 have Sam last name (such as radtmir name yourself with mir at the end of it) and be at least lvl 40
His name was Morrina, Morri for short, he was a albino Griffin and he took 300 bio toxins, 400 narcotics, and 300 prime meat......................5 mother trucker hours 😫😩😫😩 is was allll worth it though.....now I need to find him a Girlfriend