( 1 8 3 4 ) ▁establish es ▁many ▁new ▁families ▁and ▁is ▁therefore ▁an ▁important ▁work ▁of ▁scientific ▁classification . ▁ ▁New man ▁viewed ▁the ▁ske let ons ▁of ▁P ter osa urs ▁not ▁as ▁re pt iles ▁but ▁as ▁mars up ial ▁b ats . ▁This ▁was ▁based ▁on ▁earlier ▁suggestions ▁that ▁some ▁p ter osa ur ▁foss ils ▁showed ▁tu ft s ▁of ▁hair , ▁which ▁suggested ▁they ▁could ▁not ▁be ▁typical ▁cold ▁blo oded ▁re pt iles . ▁As ▁a ▁result ▁he ▁published ▁a ▁reconst ruction ▁of ▁p ter osa urs ▁as ▁hair y ▁animals ▁in ▁an ▁ 1 8 4 3 ▁edition ▁of ▁the ▁Zo ologist . ▁This ▁is , ▁as ▁far ▁as ▁is ▁known , ▁the ▁first ▁reconst ruction ▁of ▁p ter osa urs ▁as ▁hair y ▁warm ▁blo oded ▁cre atures , ▁which ▁modern ▁research ▁suggests ▁was ▁actually ▁the ▁case . ▁However ▁they ▁are ▁now ▁thought ▁to ▁be ▁highly ▁evol ved ▁and ▁warm ▁blo oded ▁re pt iles ▁and ▁not ▁mars up ial ▁b ats . ▁He ▁argued , ▁in ▁this ▁rather ▁am using ▁article , ▁that ▁it ▁was ▁rather ▁unlikely ▁that ▁his ▁ideas ▁were ▁correct , ▁since ▁authorities ▁like ▁Georges ▁C uv ier ▁and ▁William ▁Buck land ▁thought ▁p ter osa urs ▁were ▁re pt iles , ▁but , ▁even ▁so , ▁it ▁was ▁still ▁possible ▁that ▁the ▁exper ts ▁were ▁wrong ▁and ▁he ▁got ▁it ▁right . ▁ ▁References ▁ ▁Michael ▁A . ▁Sal mon ▁- ▁The ▁A ure li an ▁Leg acy ▁