Back in 2005, I made this drawing of the scapula of what would become Brontomerus . By the time we actually got the manuscript together to submit, I completely forgot that it existed! Which is just as well–I like the color photos of the bones in the PDF better than line drawings.

Introduction Many people in the paleontological community have probably seen the comments about our work on Brontomerus by Jim Kirkland. Most of these comments have been posted on Facebook or sent around by email. We have held off until now in responding to them because we wanted to have everything–both the criticisms and our responses–publicly available to everyone, not in the walled garden of Facebook.

Isn’t it funny how often an idea seems to pop up all over the place at about the same time?  The classic example is the independent and more or less simultaneous invention of calculus by both Isaac Newton and Wilhelm Leibniz, but similar kinds of things seem to happen quite often. And there’s something similar going on right now.