Fayolia
Temporal range:
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Chondrichthyes
Subclass:
Elasmobranchii
Order:
†Xenacanthida
Genus:
†Fayolia

Renault & Zeiller, 1884
Binomial name
†Fayolia dentata
Renault & Zeiller, 1884
Other species
  • †F. sterzeliana Weiss, 1887
  • †F. sharovi Fischer et al., 2011
Synonyms
  • Fayolia sterzeli

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.[2] A new species, Fayolia sharovi, was described in 2011 from lacustrine deposits of the Middle Triassic Madygen Formation in Kyrgyzstan, Central Asia.[3]

References

  1. ↑ Jörg W. Schneider; Wolfgang Reichel (1989). "Chondrichthyer-Eikapseln aus dem Rotliegenden (Unterperm) Mitteleuropas — Schlußfolgerungen zur Paläobiologie paläozoischer Süsswasserhaie". Freiberger Forschungshefte. C 436: 58–69.
  2. 1 2 Fischer, Jan; Licht, Martin; Kriwet, Jürgen; Schneider, Jörg W.; Buchwitz, Michael; Bartsch, Peter (2014-04-03). "Egg capsule morphology provides new information about the interrelationships of chondrichthyan fishes". Journal of Systematic Palaeontology. 12 (3): 389–399. doi:10.1080/14772019.2012.762061. ISSN 1477-2019.
  3. ↑ 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". Journal of Vertebrate Paleontology. 31 (5): 937–953. doi:10.1080/02724634.2011.601729. S2CID 85753690.


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