The basics look fine but I'd favour some tweaks.
To start with, how about making it AC 14 rather than 13? Then its skin is as tough as leather armour.
A 5E Deinonychus only has Speed 40 ft. but makes up for it with the Rush trait. They're not as fast as 3E 'raptors so I'm thinking we should do the same or similar with the Utahraptor, maybe:
Speed 40 ft.
Rush #1 (3/day). As a bonus action, the utahraptor can take the Dash action.
Rush #2 (3 uses, recharges after Short Rest). As a bonus action, the utahraptor can take the Dash action.
Four attacks with
Multiattack seems like way too many. I'd prefer something like "The utahraptor makes two attacks: one with its claws and one with a bite or talon."
I'd lean towards the bite doing slashing damage and the talon piercing damage since that's more "realistic" (dromeosaurs have cutting teeth and their big claws would likely have worked better as stabbing weapons aimed at their victims throat or belly).
Isn't 2d10 + 4 too much damage for the bite? I'd rather the bite and talon do the same average damage. Maybe 11 (2d6 + 4) piercing for a talon, 11 (2d4 + 6) slashing for a bite?