Conchodus

Conchodus is an extinct genus of marine lungfish which lived during the Devonian period.

The following species are known:

An indeterminate species is known from Latvia. The species C. plicatus Dawson, 1868 of Nova Scotia is now placed in Sagenodus as S. plicatus.
 * †C. elkneri Gorisdro-Kulczycka, 1950 - Late Devonian (Frasnian) of Poland
 * †C. excessus Krupina, 1990 - Late Devonian (Famennian) of Oryol, Russia
 * †C. jerofejewi (Pander, 1858) - Late Devonian of Leningrad, Russia (=Cheirodus lateralis von Eichwald, 1846 )
 * †C. ostreaformis McCoy, 1848 (type species) - Devonian of Scotland
 * †C. parvulus Bryant ex Bryant & Johnson, 1936 - Famennian of Colorado, USA
 * †C. pinguiculus Krupina, 1990 - Devonian of Russia
 * †C. variabilis Eastman, 1908 - Late Devonian of Iowa and Missouri, USA