Retodus

Extinct genus of fishes

Retodus Temporal range: Albian–Maastrichtian PreꞒ Ꞓ O S D C P T J K Pg N

Restoration of Retodus sp.
Scientific classification Edit this classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Sarcopterygii
Class:	Dipnoi
Order:	Ceratodontiformes
Family:	†Ceratodontidae
Genus:	†Retodus Churcher, De Iuliis & Kleindienst, 2006
Type species
†Retodus tuberculatus Churcher, De Iuliis & Kleindienst, 2006
Synonyms
†Ceratodus tuberculatus Tabaste, 1963 †Neoceratodus tuberculatus Tabaste, 1963

Comparison of Retodus (top) with the contemporaneous Stomatosuchus (center) Laganosuchus (bottom)

Retodus is an extinct genus of prehistoric lungfish found in Cretaceous-aged freshwater strata of Egypt (Baharija Formation), Algeria and Niger.^[1]^[2] The type species, R. tuberculatus, was named in 2006.^[3]^[4] It was originally named as a species of Ceratodus and Neoceratodus in 1963.^[5]

Description

[edit ]

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.^[3]

References

[edit ]

^ "Fossilworks: Retodus". fossilworks.org. Retrieved 17 December 2021.
^ "A titan with skin-problems". DeviantArt. 18 September 2014. Retrieved 2019年06月03日.
^ ^a ^b Churcher, Charles & De Iuliis, Gerry & Kleindienst, Maxine. (2006). A new genus for the Dipnoan species Ceratodus tuberculatus Tabaste, 1963. Geodiversitas. 28. 635-647.
^ Retodus - Churcher, De Iuliis & Kleindienst, 2006 in GBIF Secretariat (2019). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2020年08月07日.
^ 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.

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Dipnomorpha

Kingdom: Animalia
Phylum: Chordata
Clade: Osteichthyes
Clade: Sarcopterygii
Clade: Rhipidistia

Gnathostomata

see Gnathostomata
Dipnomorpha	see below↓

Dipnomorpha

Dipnomorpha

†Arquatichthys †Powichthys
†Porolepiformes	Duffichthys Durialepis Glyptolepis Hamodus Heimenia Holoptychius Laccognathus Porolepis Pseudosauripterus Quebecius Ventalepis

Dipnoi

†Ctenodus †Conchopoma †Diabolepis †Dianodipterus †Eoctenodus †Gosfordia †Ichnomylax †Iranorhynchus †Isityumzi †Janvierpaucidentes †Megapleuron †Oervigia †Orlovichthys †Proceratodus †Rhinodipterus †Sagenodus †Straitonia †Tarachomylax †Tranodis †Westollrhynchus †Youngolepis
†Uranolophidae	Melanognathus Uranolophus
†Dipnorhynchidae	Dipnorhynchus Ganorhynchus Speonesydrion
†Stomiahykidae	Archaeonectes Stomiahykus
†Chirodipteridae	Chirodipterus Gogodipterus Palaedaphus Pillararhynchus Sorbitorhynchus Sunwapta
†Holodontidae	Asthenorhynchus Griphognathus Holodipterus Iowadipterus Robinsondipterus Xeradipterus
†Dipteridae	Amadeodipterus Conchodus Dipterus Howidipterus
†Fleurantiidae	Barwickia Fleurantia
†Rhynchodipteridae	Rhynchodipterus Soederberghia
†Phaneropleuridae	Andreyevichthys Nielsenia Phaneropleuron Pentlandia Scaumenacia
†Uronemidae	Ganopristodus Uronemus

Ceratodontoidei

†Ferganoceratodus †Paraceratodus †Ptychoceratodus
Neoceratodontidae	†Archaeoceratodus †Asiatoceratodus †Mioceratodus Neoceratodus
†Ceratodontidae	Arganodus Ariguna Ceratodus Epiceratodus Lupaceratodus Metaceratodus Microceratodus ? Potamoceratodus Retodus Tellerodus
†Gnathorhizidae	Beltanodus Gnathorhiza Microceratodus ? Monongahela Namatozodia Palaeophichthys ? Persephonichthys
Lepidosirenidae	Lepidosiren Protopterus