Skania is a Cambrian fossil arthropod. The type species, S. fragillis, is known from the Burgess Shale of British Columbia, Canada. A second possible species "S." sundbergi is known from the Kaili Formation of China, but its placement within the genus has been questioned.
Specimens of "S." sundbergi are on average in length. The midline keel is more strongly pronounced in "S." sundbergi. The spines present in S. fragillis are either more weakly developed or absent.