▁a ▁third ▁in ▁ 1 7 8 3 . ▁He ▁predicted ▁that ▁the ▁insect s ▁" may ▁be ▁expected ▁again ▁in ▁the ▁year ▁ 1 8 0 0 , ▁which ▁is ▁sevent een ▁years ▁since ▁their ▁third ▁appearance ▁to ▁me ". ▁ ▁References ▁ ▁External ▁links ▁▁▁▁▁ ▁Category : T aph ur ini ▁Category : H em ip tera ▁of ▁North ▁America ▁Category : In sect s ▁described ▁in ▁ 1 7 5 8 ▁Category : T ax a ▁named ▁by ▁Carl ▁Lin na eus ▁Category : T ax onomy ▁articles ▁created ▁by ▁Pol bot <0x0A> </s> ▁Volk heimer ia ▁( mean ing ▁" of ▁Volk heimer ") ▁was ▁an ▁e us au rop od ▁sau rop od ▁din osa ur . ▁It ▁lived ▁during ▁the ▁Middle ▁Jur ass ic , ▁approximately ▁ 1 6 0   mill ion ▁years ▁ago . ▁F oss ils ▁of ▁Volk heimer ia ▁have ▁been ▁found ▁in ▁the ▁C añ ad ón ▁As fal to ▁Form ation ▁of ▁the ▁C añ ad ón ▁As fal to ▁Bas in ▁in ▁Pat ag onia , ▁Argentina . ▁The ▁type ▁( and ▁only ▁known ) ▁species , ▁V . ▁ch ub ut ensis , ▁was ▁described ▁by ▁José ▁Bon ap arte ▁in ▁ 1 9 7 9 . ▁Volk heimer ia ▁is ▁known ▁from ▁some ▁incomplete ▁post c ran ia , ▁including ▁a ▁mostly ▁complete ▁pel vis ▁and ▁sac rum , ▁ca ud al ▁verte bra e ▁and ▁a ▁fem ur ▁and ▁tib ia . ▁Many ▁features ▁of ▁this ▁sc