Three parts only. Two halves of the body and one lower jaw. That’s it.
An Inquiry into a Lego™ Star Wars Dinosaur
A.H. Chu
40122

When I was a kid they would have made the body out of 300 peices that would take a focused 10 year old 90 minutes to assemble from 20 steps worth of instructions. And the peices could be reused to build a Tauntaun or whatever hell else I might dream up. It would have been way better for kids but way worse for Lego’s top line.