▁Wer der ▁Bre men ▁players ▁Category : B undes liga ▁players ▁Category : E int racht ▁Braun sch weig ▁non - play ing ▁staff <0x0A> </s> ▁Se kw icy ath us ▁is ▁a ▁gener a ▁of ▁Arch ae ocy ath a . ▁Arch ae ocy ath s ▁are ▁a ▁tax on ▁of ▁ext inct ▁organ ism ▁that ▁lived ▁in ▁warm , ▁tropical ▁waters ▁during ▁the ▁Early ▁Camb rian ▁period ▁and ▁built ▁re ef - like ▁structures ▁in ▁the ▁o ce ans . ▁They ▁are ▁cup - sh aped , ▁with ▁internal ▁and ▁external ▁walls ▁that ▁form ▁a ▁filter ▁feed ing ▁system . ▁It ▁is ▁unclear ▁as ▁to ▁whether ▁Arch ae ocy ath s ▁are ▁animals , ▁plants , ▁or ▁some ▁other ▁type ▁of ▁organ ism . ▁They ▁are ▁similar ▁to ▁modern - day ▁sp ong es ▁but ▁share ▁tra its ▁with ▁other ▁organ isms ▁as ▁well . ▁There ▁are ▁ 3 0 9 ▁discovered ▁gener a ▁of ▁Arch ae ocy ath s . ▁ ▁Disc overy ▁▁ ▁Se kw icy ath us ▁ ▁was ▁first ▁discovered ▁in ▁ 1 9 3 9 ▁by ▁R . ▁Bed ford ▁and ▁J . ▁Bed ford . ▁It ▁is ▁in ▁the ▁order ▁of ▁A j ac icy ath ida , ▁the ▁sub - order ▁of ▁A j ac icy ath ina , ▁the ▁super family ▁of ▁E thm oph yl lo idea , ▁and ▁the ▁family ▁of ▁Fal lo cy ath idae . ▁It ▁was ▁class ified ▁into ▁the ▁order ▁and ▁sub order ▁in ▁ 1 9