Tyrannosaurus Reich was a supervillain featured in DC Comics' Major Bummer #5. T. Reich was pulled to earth through a dimensional portal from a dimension of Nazi dinosaurs. He briefly wreaks havoc in the downtown before being driven back to his home dimension by a housecat which changes sizes when agitated.
Despite his brief appearance, T. Reich has a small but enthusiastic cult following. He is not considered part of the DC Comics main canon.