Bison Rib troodon Dimetrodon was a mid-sized synapsid

Dimetrodon was a mid-sized synapsid predator that lived in the Early Permian of North America

The original specimen is held on display at the American Museum of Natural History due to its incredible rarity and quality and this cast is no different

Despite commonly being known as the “saber-toothed tiger”

Mammoths are some of the most iconic and beloved of all prehistoric species

Bison Rib troodon Dimetrodon was a mid-sized synapsidThese are authentic slices of real prehistoric Bison ribs, dating to the Pleistocene of the northern United States, over 11,000 years old. Despite their age, they are technically not fossilized, instead permineralized, meaning sediment has just began to replace the organic material in these prehistoric bones. This allows the owner to truly appreciate the phenomenal texture and stunning color of the bones of these ancient prehistoric herbivorous