KnowraQuark epochLinked fromLinked fromThe 4 pages that link to Quark epoch, each with the reason it gives.All 4Related 4Electroweak epochRelated: It followed the electroweak epoch as cosmic cooling changed the behavior of fundamental particles.Lepton epochRelated: It preceded hadron formation and the later lepton-dominated stage.Grand unification epochRelated: It belongs to the later thermal history after the proposed grand-unification era.Hadron eraRelated: The hadron era began as this preceding quark-dominated state cooled into confinement.