rol ith s ▁documented . ▁ ▁Vol unte ers ▁from ▁the ▁Den ver ▁Museum ▁of ▁Natural ▁History ▁discovered ▁Tony ' s ▁B one ▁Bed ▁in ▁the ▁C ed ar ▁Mountain ▁Form ation ' s ▁Po ison ▁St rip ▁Member . ▁ ▁Data ▁cour tes y ▁of ▁George ▁O ls he v sky ' s ▁din osa ur ▁gener a ▁list . ▁ ▁New ly ▁named ▁birds ▁ ▁P ter osa urs ▁ ▁New ▁tax a ▁ ▁References ▁▁ ▁D ant as , ▁P . M ., ▁Fre itas , ▁C ., ▁A ze ved o , ▁T . ▁San z , ▁J . L ., ▁Gal op im ▁de ▁Car val ho , ▁A . M ., ▁Santos , ▁D ., ▁Or te ga , ▁F ., ▁Santos , ▁V ., ▁San z , ▁J . L ., ▁Silva , ▁C . M . ▁& ▁C ach ão , ▁M . ▁( 1 9 9 8 ). ▁Est udo ▁dos ▁G astr ól itos ▁do ▁Din oss á ur io ▁L our in has aur us ▁do ▁Jur áss ico ▁Super ior ▁Portug u ês . ▁Act as ▁do ▁V ▁Congress o ▁Nacional ▁de ▁Ge ologia . ▁ 8 4 ▁( 1 ): ▁A 8 7 - A 9 0 . ▁ ▁Di C ro ce , ▁K . ▁and ▁K . ▁Car p enter . ▁( 2 0 0 1 ). ▁" New ▁orn ith op od ▁from ▁the ▁C ed ar ▁Mountain ▁Form ation ▁( Lower ▁C ret ace ous )