D. tropicensis was first named by Rebecca Schmeisser McKean in 2011. The specific name is derived from the name of the Tropic Shale, in which the two specimens of D. tropicensis were found.
The species D. tropicensis was first introduced by Rebecca Schmeisser McKean in 2011. Its name originates from the geological formation, the Tropic Shale, where the two specimens were discovered.