dinosaurs were gardeners

althogh after the episode where Shiny, Tiny, Don have started their own garden by gathering seeds from various flowers from the big pong, and afterwards planting them by their nest. Afterwards that guy came out after Dr. Scott's Presentation and said "Point of fact, dinosaurs were not gardeners." Well that may not be totaly correct. Well not gardeners as we would be by planting flowers. First, the herbavore dinos would eat the green plants, which would also contain seeds. Then after digesting the plants inside them, they would poop out the waste, which would also include the plant's seeds mixed in. Finally, burried in it's own fertilizer, with rain and sunshine, the seeds would start to grow new green plants. It's been done with animals for millions of years.