Discovered at the Seattle Deli (a Vietnamese joint located at 225 12th Ave S):

2010-11-20_12.52.29.jpg
Cheese, baguette, and a shrimp fried into something that looks like those fossils which were found at the Burgess Shale in British Columbia and formed the subject of a popular book by Stephen Jay Gould, Wonderful Life. The item comes with a black and spicy sauce and the animal in it is definitely an arthropod.