It was kind of ez for me to tame(I tamed this on aberration whilst riding ravager btw) first I went up onto a rock where the Spino cannot hit me then I shot it with traqs till it was knocked out,CARRY NARCOTICS OR BIO TOXIN!THEIR TORPOR RUNS OUT FAST! I tamed one by starving it and feeding prime it went up by around 80 smth percent then it was tamed!

Hope this was helpful!!