Conchodus is an extinct genus of marine lungfish which lived during the Devonian period.
The following species are known:
- â C. elkneri <small>Gorisdro-Kulczycka, 1950</small> - Late Devonian (Frasnian) of Poland
- â C. excessus <small>Krupina, 1990</small> - Late Devonian (Famennian) of Oryol, Russia
- â C. jerofejewi <small>(Pander, 1858)</small> - Late Devonian of Leningrad, Russia (=Cheirodus lateralis <small>von Eichwald, 1846</small>)
- â C. ostreaformis <small>McCoy, 1848</small> (type species) - Devonian of Scotland
- â C. parvulus <small>Bryant ex Bryant & Johnson, 1936</small> - Famennian of Colorado, USA
- â C. pinguiculus <small>Krupina, 1990</small> - Devonian of Russia
- â C. variabilis <small>Eastman, 1908</small> - Late Devonian of Iowa and Missouri, USA
An indeterminate species is known from Latvia. The species C. plicatus <small>Dawson, 1868</small> of Nova Scotia is now placed in Sagenodus as S. plicatus.
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