Horridus Is One Of The Most Complete Triceratops Fossils On Earth

Late-afternoon sunlight shone on Montana’s sandstone ridge, lighting up a large sinkhole that had been soaked by rain showers earlier in the day. Craig Pfister, a commercial paleontologist, said that he saw parts of a pelvis bone and femur bones while meandering along with private land.

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Pfister didn’t know that he was looking for one of the most complete Triceratops skeletons.

He said, “At the time, I believed or hoped that it was something special, but I had to wait another month for excavation before I realized the extent and quality” of the specimen.