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Caseodus

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(Redirected from Caseodus eatoni) Extinct genus of sharks

Caseodus
Temporal range: Carboniferous - Early Triassic 355–247.2 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Holocephali
Order: †Eugeneodontida
Family: †Caseodontidae
Genus: †Caseodus
Zangerl, 1981
Species
  • †C. basalis Cope, 1894
  • †C. eatoni Zangerl, 1981
  • †C. varidentis Mutter & Neumann, 2008

Caseodus is an extinct genus of eugeneodontid holocephalian from the Carboniferous of the United States (Illinois, Indiana, Kansas, South Dakota) and the Early Triassic of Canada (British Columbia). It was of medium size, measuring 1–1.5 m (3.3–4.9 ft) in length.

Eugeneodontida are an extinct order of Chondrichthyes. They are characterized by the presence of tooth whorls. They include iconic genera, such as Helicoprion ("buzz-saw shark"), Ornithoprion, Edestus or Fadenia. Caseodus is one of the few eugeneodontid genera that survived the end-Permian mass extinction event. It is one of the last surviving genera of this clade.

Caseodus is named after the late paleoichthyologist Gerard Case.

References

  1. Cimimurri, D.J; Fahrenbach, M.D. (2002). "Chondrichthyes from the upper part of the Minnelusa Formation (Middle Pennsylvanian: Desmoinesian), Meade County, South Dakota" (PDF). Proceedings of the South Dakota Academy of Science. 81.
  2. "Fossilworks: Caseodus".
  3. Lionel Calvin, Allison (2008) Fishes and the breakup of Pangea p. 12
  4. ^ Mutter R.J., Neuman A.G. (2008): New eugeneodontid sharks from the Lower Triassic Sulphur Mountain Formation of Western Canada. In: Fishes and the Break-up of Pangaea. Cavin L, Longbottom A, Richter M, editors. Geol Soc London Spec Publ 295: 941
  5. R., Zangerl (1981). Handbook of paleoichthyology. Vol. 3A. Chondrichthyes I (Paleozoic elasmobranchii). Gustav Fischer. ISBN 3-437-30337-6. OCLC 1116152115.
Taxon identifiers
Caseodus


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