sentences:  This formidable team won several division titles (1981, 1983, 1984, 1985) and made two Super Bowl appearances (1982, 1984).A similar Dolphin team with the "Killer B's" and company upset the 1985 Chicago Bears (15-1) and kept them from an undefeated season.With Blackwood on defense, the "Killer B's" complemented Miami's strong offensive unit guided by hall of fame quarterback Dan Marino, wide receivers Mark Duper and Mark Clayton