Richard Quarry

You don’t miss your genes till they turn you into a horse. Or a ground sloth. Or things we don’t even have a name for.
But people are sure missing them now that the Timekeeper has started evolution running backward in order to stave off nuclear holocaust. And man, is he pissed. So pissed, he’s decided to backdate humans right out of existence.
As people morph in and and out of prehistoric animals, a ragtag band led by Galloping Ariadne and Philip the Assault Otter careens through time trying to convince the Timekeeper, now convinced he’s cruise director aboard the Titanic, to give humanity one last chance. They fight their way through dinosaurs, time storms, and worst of all, a right-wing gang led by a megalomanic saber-tooth who plans to bypass humanity all together and set himself up as god.
Specifically, Seth, God of Evil.