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''Retodus'' is an extinct genus of prehistoric
''Retodus'' is an extinct genus of prehistoric lungfish
Lungfish are freshwater vertebrates belonging to the class Dipnoi. Lungfish are best known for retaining ancestral characteristics within the Osteichthyes, including the ability to breathe air, and ancestral structures within Sarcopterygii, inc ...
found in Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...
-aged freshwater strata of Egypt ( Baharija Formation), Algeria and Niger. The type species, ''R. tuberculatus'', was named in 2006.Churcher, Charles & De Iuliis, Gerry & Kleindienst, Maxine. (2006). A new genus for the Dipnoan species ''Ceratodus tuberculatus'' Tabaste, 1963. ''Geodiversitas''. 28. 635-647. It was originally named as a species of '' Ceratodus'' and '' Neoceratodus'' in 1963.Tabaste, N. (1963). — Études de restes de poissons du Crétacé saharien, in Mélanges ichthyologiques dédiés à la mémoire d’Achille Valenciennes (1794-1865). ''Mémoires de l’Institut français d’Afrique noire'' 68: 475-485.
Description
Tooth plates of ''R. tuberculatus'' are characterised by four transverse ridges, broadly rounded crests, a reticular pattern of ridges and hollows, and large adult size.See also
*Sarcopterygii
Sarcopterygii (; )—sometimes considered synonymous with Crossopterygii ()—is a clade (traditionally a class (biology), class or subclass) of vertebrate animals which includes a group of bony fish commonly referred to as lobe-finned fish. The ...
* List of sarcopterygians
This list of lobe-finned fish is a comprehensive listing of all Genus, genera that have ever been included in the class Sarcopterygii, excluding purely vernacular terms and tetrapods. The list includes all commonly accepted genera, but also genera ...
* List of prehistoric bony fish
This list of prehistoric bony fish is an attempt to create a comprehensive listing of all Genus, genera from the fossil record that have ever been considered to be bony fish (class Osteichthyes), excluding purely vernacular terms. The list includ ...
References
Prehistoric lobe-finned fish genera Cretaceous fish of Africa Fossil taxa described in 2006 {{paleo-lobefinned-fish-stub