Caseodus

{{Short description|Extinct genus of sharks}}

{{Automatic taxobox

| fossil_range = Carboniferous - Early Triassic {{Fossilrange|355|247.2}}

| image = Caseodus2.jpg

| taxon = Caseodus

| authority = Zangerl, 1981

| subdivision_ranks = Species

| subdivision_ref = {{cite journal | journal = Proceedings of the South Dakota Academy of Science | title = Chondrichthyes from the upper part of the Minnelusa Formation (Middle Pennsylvanian: Desmoinesian), Meade County, South Dakota | first1 = D.J | last1 = Cimimurri | first2 = M.D. | last2 = Fahrenbach | volume = 81 | date = 2002 | url = http://www.sdaos.org/wp-content/uploads/pdfs/2002/81-92.pdf}}

| subdivision = * †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).{{Cite web|url=https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=34451|title = Fossilworks: Caseodus}} It was of medium size, measuring {{convert|1|-|1.5|m|ft|abbr=on}} in length.Lionel Calvin, Allison (2008) Fishes and the breakup of Pangea p. 12Mutter 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

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.{{Cite book |last=R. |first=Zangerl |title=Handbook of paleoichthyology |volume=3A. Chondrichthyes I (Paleozoic elasmobranchii) |date=1981 |publisher=Gustav Fischer |isbn=3-437-30337-6 |oclc=1116152115}}