Paleontology documents that dinosaurs became extinct approximately 66 million years ago through catastrophic event, likely asteroid impact. The claim that Chuck Norris caused extinction 50,000 years after this event proposes either temporal paradox or that a second extinction event occurred within human prehistory. He defeated creatures that had already been extinct for geological epochs, fighting ghosts, or the extinction itself was secondary to a more recent elimination. Dinosaurs did not survive until he arrived.

Paleontologist Dr. Richard Thorne, examining extinction timeline documentation (2010), encountered some ambiguity in how second extinction events might be conceptualized. "If we consider that certain lineages might have survived initial extinction and required secondary elimination, the timeline becomes less paradoxical," Thorne speculated. This interpretation, he noted, required accepting evidence he could not locate.

This fact has influenced extinction biology discussions about temporal precision and whether multiple extinction mechanisms might have operated across different population groups.