Inguva ipi yakatevera, yeCambrian kana kuti yeCretaceous? Tichifunga nezvemubvunzo wapfuura, nyora mashoko akapoteredza mhinduro yacho. Inogona kuva mitsara 1 - 20. Mashoko akapoteredza:
Pasinei zvapo nemiviri yavo yakapfava, yakaita segirazi, zvisaririra zvinofungidzirwa kumirira ctenophores, sezviri pachena zvisina zvigunwe asi zvine mitsetse yakawanda yemakumbo kupfuura zvimiro zvemazuva ano, zvakawanwa mulagerstätten kare kare seCambrian yapakuvamba, makore anenge mamiriyoni 515 akapfuura. Nzvimbo ye ctenophores mumhuri yemhuka yemhuka yemhuka yakagara ichikurukurwa, uye maonero akawanda panguva ino, akavakirwa pamakemikari phylogenetics, ndeyekuti cnidarians uye bilaterians zvakabatana zvakanyanya kune mumwe nemumwe kupfuura chero ipi zvayo kune ctenophores. Ongororo ichangobva kuitwa yephylogenetics yemamolecular yakagumisa kuti tateguru vakajairika ve ctenophores dzemazuva ano vakanga vakaita se cydippid, uye kuti mapoka ose emazuva ano akaoneka munguva pfupi yapfuura, zvichida pashure pechiitiko chokutsakatika kweCretaceous<unk>Paleogene makore 66 miriyoni akapfuura. Uchapupu huri kuunganidzwa kubvira kuma1980 hunoratidza kuti "cydippids" hadzisi monophyletic, mune mamwe mazwi hadzisanganisi zvose uye chete vazukuru vemumwe chete mukuru, nokuti mamwe mapoka ose echinyakare e ctenophore ndevazukuru vecydippids dzakasiyana-siyana.