Dinosaur cake

This cake was for a 4 yr old's birthday. I saw this cute dinosaur cake using the cuddly bear pan from Wilton so I want to try it. I bought the pan and followed the directions to a T. Disaster. The head wasn't done even though I baked it for the time it said, but on convection. Then, I made it twice more and both times there were no feet and once the head fell off. The last time I made it, it was still not done so I put it back in the oven. And it sill dent stand that high. I really would not recommend this pan. If the batter wasn't leaking out everywhere, then it's underbaked because it is impossible to tell if the cake is done.
The cake was chocolate with dulce de leche filling.