Kusvika pari zvino, sainzi yedu yazvino uno yaigamuchira kuti "proboscis - chirefu chakareba, senge rurimi rwunoshandiswa nezvipfukuto zvemazuva ano nemabhururu" kuti usvike nekita mukati memaruva machubhu, akanyatso shanduka mushure mekutanga kwemaruva kutora izvi muindi. mamiriro akawanda chikafu chikafu. Asi zvakawanikwa zvenguva pfupi yezvakaitika kare zviri kunongedzera kune imwe dzidziso isina chokwadi.
Chidzidzo chinoshamisa chemafossil cores kubva kunonoka Triassic uye kutanga Jurassic kwakatungamirwa nechikwata chenyika dzevatsvagiri kuGerman; mairi, vakasangana neenyenyudzi dzenzvimbo dzefossilized idzo asarule yakawanikwa pamabhururu nemabhu.
Gare gare, ongororo dzepamberi dzakaratidza kuti aya mamirioni mazana maviri emakore prehistoric butterflies zvakare aive neproboscis, kunyangwe hazvo maruva aisazombovapo kwemamwe mamirioni makumi manomwe emakore.
Kunyangwe zvingangofungidzirwa kuti proboscis ingadai yakavabatsira kukanda madonhwe esvutugadzike madonhwe emajimnosperms (rudzi rwechirimwa chaive chakajairika kwazvo panguva yainzi), zvinoita sekunge dzidziso dzazvino pamusoro pekushanduka kwezvipembenene izvi kukwana zvakakwana.
