# Trioracodon

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***Trioracodon*** is an extinct genus of [Late Jurassic](/source/Late_Jurassic) to [Early Cretaceous](/source/Early_Cretaceous) [eutriconodont](/source/Eutriconodont) mammal found in North America and the British Isles. It was named in 1928.[1]

*T. bisulcus* is known from the [Morrison Formation](/source/Morrison_Formation), where it is present in stratigraphic zone 5,[2] and three other species from the [Purbeck Group](/source/Purbeck_Group) in [Dorset](/source/Dorset).[3]

## See also

- [List of prehistoric mammals](/source/List_of_prehistoric_mammals)
- [Paleobiota of the Morrison Formation](/source/Paleobiota_of_the_Morrison_Formation)

## References

1. G. G. Simpson. 1928. A Catalogue of the Mesozoic Mammalia in the Geological Department of the British Museum 1-215

1. Foster, J. (2007). "Appendix." *Jurassic West: The Dinosaurs of the Morrison Formation and Their World*. Indiana University Press. pp. 327-329.

1. Clemens, W.A., 1963. L [ate Jurassic mammalian fossils in the Sedgwick Museum, Cambridge](https://mail.palaeo-electronica.org/sites/default/files/media/publications/palaeontology/volume_6/vol6_part2_pp373-377.pdf) [Archived](https://web.archive.org/web/20191109110639/https://mail.palaeo-electronica.org/sites/default/files/media/publications/palaeontology/volume_6/vol6_part2_pp373-377.pdf) 2019-11-09 at the Wayback Machine. Palaeontology, 6(Part 2), pp.373-377.

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