Three species of Monograptus are recognized from Qusayba, Al-Qasim Province, Saudi Arabia. The Qusayba Shales Member of the Tabuk Formation in central Saudi Arabia contains M. decipiens decipiens, M. ex gr. barrandei and M. elongatus, associated with other graptolites. This assemblage is indicative of the Monograptus convolutus Zone. Therefore the lower part of the Qusayba Shales are believed to be correlative to the convolutus Zone (Llandovery) of Great Britain.