08/27/2026
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Museum Collections 🦫 Big beaver!
People are often surprised to learn that beavers live in Florida today, and even more surprised to learn about Castoroides dilophidus, an extinct species of giant beaver that used to live here during the Pleistocene.
This isn't even the only species of giant beaver that lived in North America at the time.
We have numerous specimens of Castoroides dilophidus in our collections - lots of teeth! - from fossil digs all around the state. Teeth are common finds because they preserve well, which is great because teeth can tell us so much about what a species ate as well as the age and condition of the individual animal when it was alive.
These large, early beavers have significant differences in their body structure compared to modern beavers, including those iconic teeth. Scientists are learning more about them each time new fossils are discovered.
Collection: Vertebrate Paleontology
Species: Castoroides dilophidus
Specimen: # UF/VP 115965
Location: Hillsborough County, FL
Explore more fossil species and dig sites: https://www.floridamuseum.ufl.edu/florida-vertebrate-fossils/