The Discovery
Researchers have identified the fossils of a unique, toothless dinosaur named Infernogallus jamesi, marking it as the first documented fruit-eating species of dinosaur. Translating to "hell chicken," the name highlights its bird-like characteristics and the Hell Creek geological formation where its bones were found across North Dakota and Montana. This broader rock zone spans Montana, North Dakota, South Dakota, and Wyoming, and is well known for significant paleontological finds.
Living roughly 66 million years ago near the end of the Cretaceous Period, Infernogallus was a turkey-sized theropod measuring about 5 feet (1.5 meters) in length and weighing close to 25 pounds (11.3 kg). It inhabited a subtropical coastal floodplain alongside iconic species like Tyrannosaurus, Triceratops, and Ankylosaurus.
What Scientists Found
The recovered fossil remains include an almost complete skeleton alongside separate palate and jaw bones. Although no direct skin or feather impressions survived, scientists suspect the animal was feathered based on evidence from related theropods. Examination of its parrot-like skull revealed three specialized adaptations for consuming soft vegetation and fruits:
- Jaw muscle configurations designed for back-and-forth chewing.
- A flexible joint allowing the lower jaw to slide forward.
- A complex arrangement of beak ridges and grooves built to shear and mash soft plant material.
Unlike many plant-eating theropods that swallowed stomach stones to break down their food, Infernogallus actively ground its food using its specialized beak and jaw system.
Why It Matters
The discovery offers concrete evidence that dinosaur diets were far more varied than previously proven. As flowering plants emerged and spread, they introduced novel food supplies, including ancient berries and drupes. Researchers suggest that Infernogallus may have fulfilled a key ecological role by spreading larger seeds across significant distances—a function that Cretaceous birds and mammals were likely too small to perform effectively.
Source: dinosaur fossil discovery - BingNews · Published October 30, 2026 · Photo by Andrey Tikhonovskiy on Unsplash
