Sloth mandibular symphysis

Sloth mandibular symphysisThis is a genuine fossil mandibular symphysis the chin region of the lower jaw from Harlan's ground sloth, Paramylodon harlani. This the portion between the mandibles. The specimen is incomplete, The alveoli for the tooth on one side is mostly intact. A great addition to any Ice Age megafauna collection. Paramylodon was a genus of ground sloth, part of the diverse group of extinct sloths known as the Mylodontidae. Here are the details about its era,

Isurus retroflexus tooth from Somerville

and millions of years on the seafloor far better than most bones

but they were not dinosaurs and they did not live during the Jurassic

That roughness isn't a flaw — it's geology and age showing through

It displays a rich rusty orange brown root with a few minor chips along the edges

the oceans were full of whales and other marine mammals

As a result

just let us know what fossil you have—we’ll engrave the appropriate information onto the stand

Tragically

as the description was published in 1976

Hard to believe this fossil is almost 20 million years old

or other big grazers and browsers