''Amphidon'' is an extinct genus of

Late Jurassic The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 163.5 ± 1.0 to 145.0 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic strata.Owen 1987. In European lithostratigraphy, the ...

mammal from the

Morrison Formation The Morrison Formation is a distinctive sequence of Upper Jurassic sedimentary rock found in the western United States which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone, ...

. It is present in stratigraphic zone 5.Foster, J. (2007). "Appendix." ''Jurassic West: The Dinosaurs of the Morrison Formation and Their World''. Indiana University Press. pp. 327-329. The only species in the genus is ''Amphidon aequicrurius'', found by

Simpson Simpson most often refers to: * Simpson (name), a British surname *''The Simpsons'', an animated American sitcom **The Simpson family, central characters of the series ''The Simpsons'' Simpson may also refer to: Organizations Schools *Simpso ...

in 1925.

References

* Foster, J. (2007). Jurassic West: The Dinosaurs of the Morrison Formation and Their World. Indiana University Press. 389pp. Morrison mammals Eutriconodonts Taxa named by George Gaylord Simpson Prehistoric mammal genera {{jurassic-mammal-stub

See also

References