ous ▁fragment ary ▁remains ▁from ▁Mah aj anga ▁Province ▁in ▁north western ▁Mad agas car ▁were ▁recovered ▁by ▁French ▁collect ors ▁over ▁the ▁next ▁ 1 0 0 ▁years , ▁many ▁of ▁which ▁were ▁depos ited ▁in ▁the ▁Mus é um ▁National ▁d ' H istoire ▁Nature lle ▁in ▁Paris . ▁In ▁ 1 9 5 5 , ▁René ▁Lav oc at ▁described ▁a ▁ther op od ▁dent ary ▁( M N H N . MA J ▁ 1 ) ▁with ▁teeth ▁from ▁the ▁Ma e var ano ▁Form ation ▁in ▁the ▁same ▁region ▁where ▁the ▁original ▁material ▁was ▁found . ▁The ▁teeth ▁matched ▁those ▁first ▁described ▁by ▁Dep é ret , ▁but ▁the ▁strongly ▁cur ved ▁j aw ▁b one ▁was ▁very ▁different ▁from ▁both ▁Meg al osa urus ▁and ▁D rypt osa urus . ▁Based ▁on ▁this ▁dent ary , ▁Lav oc at ▁created ▁the ▁new ▁genus ▁Maj ung as aur us , ▁using ▁an ▁older ▁sp elling ▁of ▁Mah aj anga ▁as ▁well ▁as ▁the ▁Greek ▁word ▁ σ α υ ρ ος ▁ ▁( mean ing ▁" l izard "). ▁Hans - Di eter ▁S ues ▁and ▁Philippe ▁Ta quet ▁described ▁a ▁d ome - sh aped ▁sk ull ▁fragment ▁( M N H N . MA J ▁ 4 ) ▁as ▁a ▁new ▁genus ▁of ▁p ach y ce phal osa ur ▁( M aj ung athol us ▁at opus ) ▁in ▁ 1 9 7 9 . ▁This ▁was ▁the ▁first ▁report ▁of ▁a ▁p ach y