Dinosaurs are known first and foremost for their tremendous size. Even as our knowledge of small non-avian dinosaurs grows increasingly clearer, the average size of Mesozoic non-avians was still about the same as a sheep, considerably larger than the average rat-sized mammal. Even when avians are included, they average out at gull-sized, which likely makes them the largest of all vertebrate groups to have ever existed… on average. But were non-avian dinosaurs able to continue this trend to the Saurocene’s present day, or had the tumultuous climate of the Cenozoic proved too much for the titans of yore? It was a vexing ques