▁cent im eters ▁long , ▁and ▁ 2 1 ▁cent im eters ▁wide . ▁ ▁The ▁arm or ▁is ▁later ally ▁fl ank ed ▁on ▁both ▁sides ▁by ▁ser r ated ▁fr ing es . ▁ ▁The ▁anterior ▁portion ▁of ▁the ▁arm or ▁is ▁missing , ▁so ▁exper ts ▁are ▁uns ure ▁if ▁E . ▁by st row i ▁had ▁eyes ▁( and ▁pre orb ital ▁open ings ) ▁or ▁not . ▁ ▁There ▁is ▁a ▁pair ▁of ▁branch ial ▁open ings ▁placed ▁d ors ally ▁on ▁a ▁large ▁d ors al ▁l ump ▁at ▁the ▁posterior ▁end ▁of ▁the ▁arm or . ▁ ▁References ▁ ▁Category : Am phi asp id ida ▁Category : Dev onian ▁j aw less ▁fish ▁Category : E ar ly ▁Dev onian ▁fish ▁Category : Cy ath asp id iformes ▁gener a ▁Category : Dev onian ▁fish ▁of ▁Asia ▁Category : Fa una ▁of ▁Si ber ia ▁Category : F oss ils ▁of ▁Russia ▁Category : E ar ly ▁Dev onian ▁first ▁appearances ▁Category : Dev onian ▁ext in ctions <0x0A> </s> ▁Ly nd ie ▁Green wood ▁( born ▁June ▁ 6 , ▁ 1 9 8 3 ) ▁is ▁a ▁Canadian ▁actress ▁best ▁known ▁for ▁her ▁rec urr ing ▁role ▁of ▁Sony a ▁on ▁The ▁C W ' s ▁Nik ita ▁and ▁being ▁a ▁series ▁regular ▁cast ▁member ▁of ▁FO X ' s ▁S leep y ▁H ollow , ▁playing ▁the ▁role ▁of ▁Jen ny ▁M ills ▁in ▁ 2 0 1 3 . ▁In ▁