From quirky monsters to space explorers, these long-lost cereal mascots once ruled Saturday mornings before fading into pop-culture history.

The 1980s and 1990s were a golden age of breakfast experimentation when cereal boxes doubled as portals to pop culture fantasies. From cartoon crossovers to space-age mascots, these sugary creations ...

More than a few classic cereals have gone the way of the dodo. Here are several once-popular Baby Boomer cereals that no longer exist.