Yes to the question of the op. Dinosaurs are just long living reptiles that never stop growing. Logic says a 600 year old reptile will be significantly larger than a 60 year old, and would require much more food. Throw in an ice age and a different environment and you probably are not going to have huge dinosaurs any longer. Adam lived a total of 930 years but he did not continue to grow after he reached maturity. Neither did anyone else, except maybe the giants, the soulless creatures that were produced from unions between angels and women and which populated the earth before the flood and whose finger print was found in the line of Canaan after the flood.