#14 Paleogastroentomologist

One who studies the gastrointestinal tracts of extinct insects.

The invisible hand of the market had swooped Kevin up from the halls of academia, where he completed his doctoral work on the digestive tract of an extinct walking stick species that emerged from the Phasmatodea order at the end of the Permian–Triassic extinction event over 252 million years ago, hung an apron around his neck, and placed him behind the counter of a popular fast-food chain’s storefront in a suburban strip mall in Bethesda, Maryland where he served as a sandwich artist who once dreamed of becoming a paleogastroentomologist. 

Root = paleontology + gastroenterology + entomology