Rileya was a unknown. It lived in the Unknown period and inhabited . Its fossils have been found in places such as England (United Kingdom).

All the Rileya illustrations below were collected from the internet. Enjoy and explore:

Rileya was described by the following scientific paper(s):
  • W. Buckland. 1824. Reliquiæ Diluvianæ; or, Observations on the Organic Remains Contained in Caves, Fissures, and Diluvial Gravel, and on Other Geological Phenomena, Attesting the Action of an Universal Deluge. Second Edition. John Murray, London