Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Ganowa ya ci gaba a Walcott Quarry ta Geological Survey of Canada a ƙarƙashin rinjayar masanin trilobite Harry Blackmore Whittington, kuma an kafa sabon dutsen, Raymond, kimanin mita 20 sama da Fossil Ridge. Whittington, tare da taimakon daliban bincike Derek Briggs da Simon Conway Morris na Jami'ar Cambridge, sun fara cikakken sake dubawa na Burgess Shale, kuma sun bayyana cewa fauna da aka wakilta sun bambanta da ban mamaki fiye da yadda Walcott ya gane. Hakika, dabbobi da yawa da ke wurin suna da siffa dabam dabam kuma ba su yi kama da dabbobi da aka sani ba. Misalai sun hada da Opabinia, tare da idanu biyar da kuma hanci kamar bututun tsabtace tsabta da Hallucigenia, wanda aka sake gina shi a baya, yana tafiya a kan ƙuƙwalwar ƙuƙwalwa.  Tambaya: Wanene ya taimaki Whittington?
Derek Briggs da kuma Simon Conway Morris