ce phal osa ur ▁in ▁the ▁Southern ▁Hem is phere . ▁ ▁In ▁ 1 9 9 3 , ▁scient ists ▁from ▁the ▁State ▁University ▁of ▁New ▁York ▁at ▁St ony ▁Brook ▁and ▁the ▁University ▁of ▁Ant an an ar ivo ▁began ▁the ▁Mah aj anga ▁Bas in ▁Project , ▁a ▁series ▁of ▁exped itions ▁to ▁examine ▁the ▁foss ils ▁and ▁ge ology ▁of ▁the ▁Late ▁C ret ace ous ▁sed iments ▁near ▁the ▁village ▁of ▁Ber ivot ra , ▁in ▁Mah aj anga ▁Province . ▁Among ▁these ▁scient ists ▁was ▁pale ont ologist ▁David ▁W . ▁Kra use ▁of ▁St ony ▁Brook . ▁ ▁The ▁first ▁expedition ▁turned ▁up ▁hundreds ▁of ▁ther op od ▁teeth ▁identical ▁to ▁those ▁of ▁Maj ung as aur us , ▁some ▁of ▁which ▁were ▁attached ▁to ▁an ▁isolated ▁pre max illa ▁that ▁was ▁described ▁in ▁ 1 9 9 6 . ▁The ▁following ▁seven ▁exped itions ▁would ▁turn ▁up ▁tens ▁of ▁thousands ▁of ▁foss ils , ▁many ▁of ▁which ▁belonged ▁to ▁species ▁new ▁to ▁science . ▁The ▁Mah aj anga ▁Bas in ▁Project ▁claims ▁credit ▁for ▁qu int u pling ▁the ▁known ▁divers ity ▁of ▁foss il ▁tax a ▁in ▁the ▁region . ▁ ▁Field work ▁in ▁ 1 9 9 6 ▁turned ▁up ▁a ▁spect ac ular ly ▁complete ▁ther op od ▁sk ull ▁preserved ▁in ▁ex quis ite ▁detail ▁( FM N H ▁PR ▁ 2 1 0 0 ). ▁On ▁top ▁of ▁this ▁sk ull ▁was ▁a ▁d ome - sh aped ▁sw elling