bit / s ▁and ▁reports ▁u pt ime ▁of ▁ 9 9 . 9 9 9 9 % ▁ ▁References ▁▁ ▁Category : Internet ▁hosting <0x0A> </s> ▁Pla esi omy idae ▁is ▁a ▁family ▁of ▁ext inct ▁lamp ▁shell s ▁belonging ▁to ▁the ▁order ▁Orth ida . ▁ ▁F oss il ▁record ▁F oss ils ▁of ▁Pla esi omy idae ▁are ▁found ▁in ▁marine ▁str ata ▁from ▁the ▁Ord ov ician ▁until ▁the ▁Sil ur ian ▁ ▁( age ▁range : ▁from ▁ 4 7 8 . 6 ▁to ▁ 4 1 8 . 7 ▁years ▁ago .). ▁ ▁Gener a ▁† A ust in ella ▁ ▁Fo er ste , ▁ 1 9 0 9 ▁† B ok ot or this ▁ ▁Pop ov ▁et ▁al ., ▁ 2 0 0 0 ▁† C amp yl or this ▁ ▁Ulrich ▁and ▁Co pper , ▁ 1 9 4 2 ▁† Ch a ul ist om ella ▁† D in or this ▁ ▁Hall ▁and ▁Clar ke , ▁ 1 8 9 2 ▁† E ven k ina ▁† Mad ior this ▁ ▁Z uy kov ▁and ▁Har per , ▁ 2 0 0 8 ▁† Met or this ▁ ▁† Mult ic ost ella ▁† P la esi om ys ▁ ▁Hall ▁and ▁Clar ke , ▁ 1 8 9 2 ▁† Ret ror si ro stra ▁ ▁Sch uch ert ▁and ▁Cooper , ▁ 1 9 3 2 ▁† Val cou rea ▁ ▁References ▁ ▁Category : Pre histor ic ▁proto