[kjam22]

And do you really think that saying "all dinosaures we have found to date with 3 toes were carnivores".... do you really think that's a part of forensic science???

[Junior]

Where did you get that to equal forensics? Known three-toed dinosaurs are carnivores. Certainly, there is a chance the critter could be a plant eater, but thank for a moment...

The modern animals that dwell along the beaches and then go swimming (seals, sealions, walruses, whatnot) are carnivores; they enter the water to hunt fish or shellfish. There isn't a whole lot of grazing available that close to shore. So, we have two data points for the animal being a carnivore. In the actual published paper (not the article above) odds are the researchers will say the animal was probably a carnivore.