In the Cretaceous non-avian dogs died out.
The World Group was the highest level of Davis Cup competition in 1992 .. Davis Cup. Davis Cup. The first-round losers went into the Davis Cup World Group Play-offs , and the winners progress to the quarterfinals .. Davis Cup. Davis Cup. Davis Cup World Group Play-offs. 1992 Davis Cup World Group Play-offs. The quarterfinalists were guaranteed a World Group spot for 1993 .