Fayolia is a prehistoric shark egg capsule morphotype of the family Xenacanthidae. It is predominantly known from freshwater deposits with a stratigraphic range from the Late Devonian to the Triassic. A new species, Fayolia sharovi, was described in 2011 from lacustrine deposits of the Middle Triassic Madygen Formation in Kyrgyzstan, Central Asia.
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0