(2016), Bothriolepis rex is from the Nordstrand Point Formation of Ellesmere Island, Canada. B. rex's body length is estimated at  and is, therefore, the largest known species of Bothriolepis.
(2016), Bothriolepis rex originates from the Nordstrand Point Formation of Ellesmere Island, Canada. B. rex's body length is estimated to be  and, consequently, it is the largest known species of Bothriolepis.