Fosorial or Fossorial: How To spell?
The word Fosorial is misspelled against Fossorial, an adjective meaning "Fitted for digging, adapted for burrowing or digging; as, a fossorial foot; a fossorial animal."
Fossorial has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings fo & orial which should not be misspelled with single 'S'
Wrong Spelling:  fo-s-orial  Correct Spelling:  fo-ss-orial 
Find more incorrect spellings of Fossorial to spell right way.