''Calamopleurus'' is an extinct genus of

bowfin The bowfin (''Amia calva'') is a bony fish, native to North America. Common names include mudfish, mud pike, dogfish, grindle, grinnel, swamp trout, and choupique. It is regarded as a relict, being the sole surviving species of the Halecomorp ...

s, comprising three species: ''C. cylindricus'' and ''C. mawsoni'' from

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

and ''C. africanus'' from

Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...

References

Amiiformes Prehistoric fish of Africa Prehistoric fish of South America Cretaceous animals of South America Cretaceous Brazil Fossils of Brazil Crato Formation Romualdo Formation Fossil taxa described in 1841 Taxa named by Louis Agassiz {{paleo-rayfinned-fish-stub