Petrifin and Mortificator Syythrak are not in-tune to Live spawns...both of these mobs should be hitting in the 90's. See
http://eqbeastiary.allakhazam.com/search.shtml?id=3609 for Petrifin. You can find Morti there too but his melee damage is not reported. I know for a fact though that he also hits for around the same as Petrifin (90's max). Currently these mobs are meleeing for 120 max (both the same).
Also both of these mobs appear to be replicas of other lizards/basilisk. On Live and in Classic both of these mobs appeared to be much larger versions of these lower level mobs...Petrifin was a bigger looking basilisk and Morti was a bigger looking lizardman.