Burgess Shale Picture

Fosil Burgess Shale,
by :
http://www.fossils-facts-and-finds.com/trilobites.html

Dinosaurs Size

Dinosaur size

From Wikipedia, the free encyclopedia

Size has been one of the most interesting aspects of dinosaur science to the general public. This article lists the largest and smallest dinosaurs from various groups, sorted in order of weight and length.

Scale diagram comparing the largest known dinosaurs in four suborders and a human.