rog ulus ▁was ▁found ▁in ▁the ▁Co al ▁Me asures ▁of ▁Comment ry ▁in ▁northern ▁France , ▁together ▁with ▁Nem ast omo ides ▁el aver is . ▁E ot rog ulus ▁was ▁previously ▁thought ▁to ▁be ▁a ▁trig on ot ar bid . ▁ ▁Foot notes ▁ ▁References ▁ ▁Jo el ▁Hall an ' s ▁Bi ology ▁Catalog : ▁E ot rog ul idae ▁ ▁The ven in , ▁A . ▁( 1 9 0 1 ): ▁Sur ▁la ▁déc ouver te ▁d ' ar ach n ides ▁dans ▁le ▁terrain ▁h ou iller ▁de ▁Comment ry . ▁Bull ▁Soc ▁Gé ol . ▁Fr . ▁ 4 ( 1 ): ▁ 6 0 5 - 6 1 1 . ▁ ▁Pet run ke v itch , ▁A . ▁I . ▁( 1 9 5 5 ): ▁Ara chn ida . ▁pp .   4 2 – 1 6 2 ▁in ▁Tre at ise ▁on ▁In verte br ate ▁Pala e ont ology , ▁part ▁P . ▁Ar th rop oda ▁ 2 ▁( R . ▁C . ▁Moore , ▁ed .). ▁Ge ological ▁Society ▁of ▁America ▁& ▁University ▁of ▁Kansas ▁Press , ▁Lawrence . ▁ ▁P into - da - R och a , ▁R ., ▁Mach ado , ▁G . ▁& ▁Gi rib et , ▁G . ▁( eds .) ▁( 2 0 0 7 ): ▁Har vest men ▁- ▁The ▁Bi ology ▁of ▁Op il iones . ▁Harvard ▁University ▁Press ▁▁ ▁Category : Har vest men ▁Category : Car bon ifer