Burgess Shale
This book recounts the scholarship of three individuals who studied the Burgess Shale fossils in detail for many years. They essentially began what this thread is about.
For the record, a large collection of these very rare fossils are on exhibit at the Royal Tyrell Museum Drumheller Alberta. The museum has one of the largest dinosaur exhibit collections in existance. If you go to bampf and lake louise, a side trip to the museum is in range