Bruh, people just making this thing hard. The tip to tame a spinosaurus is just going for him riding a carbonemys (it will need lots of health, I think 2000 is enough) while having a crossbow or bow with tranqs. Just shoot him repeatedly as he will hit your carbonemys instead of you, and when he starts to run away, get out of the carbonemys and keep shooting and chasing him until he gets knocked. Then feed him lots of meat and use lots of narcotics (biotoxins better). Thx for reading and hope it helps ^_^

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