<prompt> Pfupisa nyaya yacho: Chimwe chikara chine makumbo marefu matanhatu chaigara mumakungwa makore anodarika mamiriyoni 500 akapfuura uye chaiva pakati pemadzitateguru ezvipembenene zvemazuva ano, maspider nemakamba, masayendisiti akawana kudaro. Yawunik kootenayi yakafanana nehomwe yaiva nemaziso mana nemapfupa akareba akafanana nechibhakera ayo aibva kumagumo emakumbo ayo. Zvigunwe zvina zvacho zvaivawo nemitsara yemazino yakatarisana yaibatsira chisikwa chacho kubata mhuka dzacho mumakungwa ekare kare munguva yeCambrian. Dzorera pasi kuti uone vhidhiyo. Yawunik kootenayi, inoratidzwa pakugadzirwazve kuri pamusoro apa, yaigara mugungwa makore mamiriyoni 508 akapfuura. Chisikwa chakafanana nehomwe chakanga chine maziso mana nemapfupa marefu akafanana nechibhakera ayo aiwedzera kubva kumagumo emakumbo ayo. Chimwe chimiro chechisikwa ichi chisina kujairika chakawanikwa muMarble Canyon kuchamhembe kweKootenay National Park muCanada Rockies. Nyanzvi dzezvinhu zvekare dzinoti zvimwe rudzi urwu rwakanga rwuri rumwe rwezvisikwa zvinokambaira zvinokambaira zvakatanga kufamba-famba panyika - boka rakazova masvosve, makudo uye zvipembenene. Imwe tsvakurudzo itsva yakaratidza kuti mhuka inogara mumvura yakaita sengwena yaiva yakakura semotokari duku yaitonga madziva ekare kare makore anopfuura mamiriyoni 200 akapfuura. Nyanzvi dzinoongorora zvinhu zvekare dzakawana zvisaririra zvesuper salamander pavaichera pane rimwe gungwa rekare kumaodzanyemba kwePortugal. Mhuka iyi yakakura kusvika mamita maviri 6.5 ft pakureba uye yaigara mumadhamu nenzizi munguva yeLate Triassic Period, uye yakapiwa zita rokuti Metoposaurus algarvensis. Nomuromo wakazadzwa namazino akapinza akafanana netsono inofungidzirwa kuti yakavhima hove asi yaigonawo kuva yakatsvaka madinosaurs api naapi maduku apakuvamba ayo akasvika pedyo zvikuru nemvura. Chisikwa chinoparadza, icho kufanana namapoka ose ezvipikiri chakanga chine mapfupa okunze kana kuti exoskeleton, chinofungidzirwa kuva chakararama makore ane mamiriyoni 508 akapfuura. Cedric Aria, nyanzvi yezvinhu zvipenyu yokushanduka-shanduka paYunivhesiti yeToronto uyo akanga ari rutivi rweboka rakawana rudzi rwacho, akati: Chisikwa ichi chiri kuwedzera maonero edu pamusoro pokuumbwa kwomuviri uye miitiro yokuvhima yearthropods yokutanga, boka iro maspider nehove dzegungwa dziri nhengo dzaro. Zvave...  <response>: Yawunik kootenayi yakawanikwa muMarble Canyon muCanada Rockies. Chisikwa ichi chaiva mhuka inodya dzimwe dzaishambira mumakungwa eCambrian. Fosili yacho ndeyerimwe boka rakaita kuti pave nemakoko, tupukanana uye makambasi. Masayendisiti anotaura kuti yakanga ine zvikamu zviviri zvemberi zvine zvigunwe zvitatu refu pachimwe nechimwe. 