Fayolia Explained
Fayolia is a genus of fossil egg capsule, widely thought to have been produced by xenacanths.[1] The egg is elongate and tapers towards both ends, and surrounded by helically twisted collarettes, with one end (the beak) having a tendril.[2]
It is predominantly known from freshwater deposits with 16 species spanning a stratigraphic range from the Late Devonian to the Middle Triassic. A new species, Fayolia sharovi, was described in 2011 from lacustrine deposits of the Middle Triassic Madygen Formation in Kyrgyzstan, Central Asia.[3]
Further reading
- J. Fischer and I. Kogan. 2008. Elasmobranch egg capsules Palaeoxyris, Fayolia and Vetacapsula as subject of palaeontological research – an annotated bibliography. Freiberger Forschungshefte C528:75-91
Notes and References
- Jörg W. Schneider . Wolfgang Reichel . 1989 . Chondrichthyer-Eikapseln aus dem Rotliegenden (Unterperm) Mitteleuropas — Schlußfolgerungen zur Paläobiologie paläozoischer Süsswasserhaie . . C 436 . 58–69.
- Fischer . Jan . Licht . Martin . Kriwet . Jürgen . Schneider . Jörg W. . Buchwitz . Michael . Bartsch . Peter . 3 April 2014 . Egg capsule morphology provides new information about the interrelationships of chondrichthyan fishes . Journal of Systematic Palaeontology . en . 12 . 3 . 389–399 . 10.1080/14772019.2012.762061 . 2014JSPal..12..389F . 1477-2019.
- Jan Fischer . Sebastian Voigt . Jörg W. Schneider . Michael Buchwitz . Silke Voigt . 2011 . A selachian freshwater fauna from the Triassic of Kyrgyzstan and its implication for Mesozoic shark nurseries . . 31 . 5 . 937–953 . 10.1080/02724634.2011.601729. 2011JVPal..31..937F . 85753690 .
