Forget the croak. This frog was all about the crunch.

Researchers from the University of Adelaide are part of an international team that has been looking into a 68 million-year-old frog called Beelzebufo (Devil Toad).

Specifically, it’s Pac-Man like mouth.

According to the study published in the Nature journal Scientific Reports, the frog — which grew up to a foot and a half in length and weighed more than 10 pounds — had a powerful bite.

Reconstructing its anatomy (it really did look to be made entirely of a mouth) allowed its chomp force to be calculated.

Modern descendants of the ancient amphibian, genus Ceratophrys, have a head about two inches wide. These horned frogs can exert a force of about 6.7 pounds.

“This is the first time bite force has been measured in a frog,” says Professor Kristopher Lappin at California State Polytechnic University. “And, speaking from experience, horned frogs have quite an impressive bite, and they tend not to let go. The bite of a large Beelzebufo would have been remarkable, definitely not something I would want to experience first-hand.”

Scaling the modern horned frogs to its much larger ancestor proved it was a formidable predator.

“Unlike the vast majority of frogs which have weak jaws and typically consume small prey, horned frogs ambush animals as large as themselves — including other frogs, snakes, and rodents,” says Dr. Marc Jones, researcher at the University of Adelaide’s School of Biological Sciences and honorary researcher at the South Australian Museum.

In comparison, Beelzebufo, which is anatomically similar to the modern horned frogs, may have had a 500-pound bite.

That’s comparable to modern wolves and tigers.

“At this bite force, Beelzebufo would have been capable of subduing the small and juvenile dinosaurs that shared its environment,” says Jones.