Dinosaur Size Matters
When someone says dinosaur, what is the first image that pops into your mind? Most likely, the toothsome Tyrannosaurus rex, a lumbering sauropod like a Diplodocus, the Velociraptor as portrayed in the Jurassic Park movies. The big guys get the best press.
Dinosaurs came in a range of sizes. In fact, the Velociraptor was about the size of a turkey. Some of the reconstructions are from woefully incomplete skeletons. Some of those views were later revised, and should make paleontologists repent of their hasty assertions.
Spinophorosaurus, Wikimedia Commons / Nobumichi Tamura (CC BY 3.0) |
A 1995 analysis concluded that the most common size (‘mode’) was about 1–10 tonnes (t).2 By comparison, today’s white rhinoceros and African elephant weigh about 2 and 6 t, respectively.
The scientist who conducted this analysis noted that the early researchers tended to collect more of the larger dinosaurs, while modern researchers have found a greater proportion of smaller dinosaurs. A further analysis in 2015 confirmed and refined that earlier research:
For tons and tonnes of interesting reading, you can read all of this short article at "How big were the dinosaurs, really?" There are some useful "Related Articles" below it.