It wasn't until 1979 that paleontologist Derek Briggs theorized Anomalocaris was in fact the appendage of a much larger animal, a theory he would prove in 1981 with the help of Harry Whittington. Re-examining a fossil of Laggania with a Peytoia curiously lying across its base, they uncovered a pair of Anomalocaris hidden deeper in the ancient rock, and thus three imaginary animals Voltroned together into one very real and magnificent monster.