MOR 693 waxaa lagu aasay meel u dhow Shell, Wyoming, koox wadajir ah oo ka tirsan Matxafka Rockies iyo Jaamacadda Wyoming Geological Museum. Qalfoofkan waxaa helay koox Swiss ah, oo uu hoggaaminayo Kirby Siber. 1996 kooxda isku mid ah ayaa soo ogaatay Allosaurus labaad, "Big Al Two", oo ah qalfoofka ugu wanaagsan ee la ilaaliyo ee noociisa ilaa maanta. Buuxinta, ilaalinta, iyo muhiimada sayniska ee qalfoofkan ayaa "Big Alrum" siisay magaceeda; dhaawaca shakhsi ahaaneed ayaa ka hooseeyay celceliska cabirka Allosaurus fragilis, waxaana lagu qiyaasay kaliya 8%.
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