Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: An san hakoran shark na burbushin halittu daga farkon Devonian, kimanin shekaru miliyan 400 da suka gabata. A cikin lokacin Carbon na gaba, sharks sun sami lokaci na bambance-bambance, tare da sababbin nau'o'i da yawa. Da yawa daga cikin waɗannan sun mutu a lokacin Permian, amma sauran sharks sun sami fashewar ta biyu na daidaitawa na radiation a lokacin Jurassic, wanda a lokacin da skates da rays suka fara bayyana. Yawancin umarnin da suka tsira na elasmobranch sun dawo zuwa Cretaceous, ko a baya.  Tambaya: Yaushe ne ya zama bace
a lokacin Permian