The series is notable for its graphic violence and gore, intended to evoke memories of the successful Mars Attacks trading card series of 1962. The Dinosaurs Attack! trading cards were created as a follow-up to the successful trading card series Mars Attacks. Like Mars Attacks, Dinosaurs Attack! was intended as an homage and a parody of 1950's B-movies. While Mars Attacks was a parody of alien invasion movies, Dinosaurs Attack! was inspired by monster movies such as Beast From 20,000 Fathoms and Godzilla.
The storyline of the card series is minimal. They tell the story of a scientific experiment gone horribly wrong, transporting dinosaurs of many varieties from their prehistoric world to modern times, where they wreck havoc upon mankind. Most of the cards show a different scene of the dinosaurs causing chaos and death across the world. Some of the cards show the scientists working to reverse the time-travel effect. In the end, the scientists succeed and send the dinosaurs back to their own time, tearing the animals apart in the process.
The artwork is intended to be shocking with one card showing schoolchildren being eaten by an allosaurus, and a pterodon tearing apart the President. The cards also contain numerous inaccuracies in their depiction of dinosaurs. For instance, in one card, trilobites are portraying as 'flesh-eating worms' that attack humans. In reality, the trilobites consumed mud for nutrients. Despite the company's hopes, Dinosaurs Attack did not achieve commercial success.