Cladodus Temporal range:Carboniferous PreꞒ Ꞓ O S D C P T J K Pg N
A tooth which has been assigned toCladodus sp. fromMammoth Cave.Cladodus exhibitscladodont dentition
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Order:	†Ctenacanthiformes
Family:	†Ctenacanthidae
Genus:	†Cladodus Agassiz, 1843
Species
See text

Cladodus is an extinct genus ofcartilaginous fishes in the familyCtenacanthidae. As thename implies, they are a type ofcladodont, primitivesharks withteeth designed to snag fish andswallow them whole, instead of sawing off chunks to swallow.

Fossils ofCladodus have been found inBarkip, Scotland,^[1]Bundock andLaurel Formations, Australia^[2] and in thePitkin Formation (Carboniferous period) inArkansas, United States. In addition, fossils attributable toCladodus are known from theManning Canyon Shale of Carboniferous age in the state ofUtah.^[3]

• †Cladodus alternatusSt. John & Worthen, 1875
• †Cladodus angulatusNewberry & Worthen, 1866
• †Cladodus belliferSt. John & Worthen, 1875
• †Cladodus divaricatusTrautschold, 1874
• †Cladodus elegansNewberry & Worthen, 1870^[4] Remains (braincase and a tooth) have been found in Scotland (Clackmannan Group).^[5]
• †Cladodus eriensisBryant, 1935
• †Cladodus formosusHay, 1902
• †Cladodus gailensisFeichtingeret al., 2021^[6]
• †Cladodus marginatusAgassiz, 1843
• †Cladodus mirabilisAgassiz, 1843 (type species)
• †Cladodus pandatusSt. John & Worthen, 1875
• †Cladodus springeriSt. John & Worthen, 1875
• †Cladodus thomasiTurner, 1982 Known by teeth from the Lower CarboniferousBundock Formation, North Queensland, and theTournaisianLaurel Formation, Western Australia. Teeth reach 2.2-90 mm in length. This species was considered as a junior synonym ofStethacanthus obtusus by Lebedev (1996) but later reassigned toCladodus due to a smaller number and distinct morphology of cusps.^[2]
• †Cladodus vanhorneiSt. John & Worthen, 1875
• †Cladodus yunnanensisPan, 1964

• List of prehistoric cartilaginous fish genera

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• Ctenacanthiformes
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