Big Pig Archaeotherium
Title
Scientific Name
Archaeotherium Megalochoerus zygomaticus
Time Period
Oligocene
Age (years old)
35 million years
Found
Brule Formation, South Dakota
Real or Cast
Real
Library Department
Children's
Library Location
West Wall Play Area
Collection
Citation
“Big Pig Archaeotherium,” Boyle County Public Library Special Collections, accessed December 16, 2025, https://archives.boylepublib.org/items/show/7836.