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Plethodus Temporal range: Cenomanian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	†Tselfatiiformes
Family:	†Plethodidae
Genus:	†Plethodus Dixon, 1850
Species
P. expansus Dixon, 1850 P. oblongus Dixon, 1850 P. pentagon Woodward, 1899

Plethodus is an extinct genus of prehistoric ray-finned fish. It is the type genus of the family Plethodidae.

Fossils are mostly known from Europe, but specimens have recently been identified from Texas.

References

1. "Plethodus". Paleobiology Database. Retrieved November 11, 2012.
2. Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Retrieved 2009-02-27.
3. ^ Shimada, Kenshu (2020). "An Enigmatic Snouted Bony Fish, Plethodus sp. (Actinopterygii: Tselfatiiformes), from the Upper Cretaceous Eagle Ford Group of Texas, U.S.A." Transactions of the Kansas Academy of Science. 123 (3–4): 429–434. doi:10.1660/062.123.0312. ISSN 0022-8443.
4. "Plethodids". oceansofkansas.com. Retrieved 2024-01-04.

v t e Teleostei sensu de Pinna, 1996 (= Teleosteomorpha)
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Subclass: Neopterygii Actinopterygii see Actinopterygii Neopterygii see Neopterygii Teleostei see below↓
Teleostei Teleostei †Atacamichthys †Baleiichthys †Barschichthys †Bunoderma †Ceramurus †Diplospondichthys? †Dorsetichthys †Elpistoichthys †Eurycormus †Galkinia †Grimmenichthys †Hengnania †Hulettia? †Hungkiichthys †Ichthyokentema †Jialingichthys †Ligulella †Luxembourgichthys †Majokia †Marcopoloichthys †Neobaleiichthys †Oligopleurus? †Pholidophorichthys †Pholidophoroides †Pholidophoropsis †Prohalecites †Ruedersdorfia †Seefeldia †Seinstedtia †Signeuxella †Pachycormidae Eugnathides? Euthynotus Haasichthys Notodectes Pseudoasthenocormus Sauropsis Hypsocorminae Australopachycormus Hypsocormus Kaykay Orthocormus Protosphyraena Simocormus Asthenocorminae Asthenocormus Bonnerichthys Germanostomus Leedsichthys Martillichthys Ohmdenia Pachycormus? Rhinconichthys Saurostomus †Aspidorhynchidae Aspidorhynchus Belonostomus Jonoichthys Pseudovinctifer Richmondichthys Vinctifer †Pholidophoridae sensu stricto Annaichthys Ceneichthys Eopholidophorus Knerichthys Lombardichthys Malingichthys Parapholidophorus Pholidoctenus Pholidophoretes Pholidophorus Pholidorhynchodon Pseudopholidoctenus Zambellichthys †Archaeomaenidae Aphnelepis Archaeomaene Gurvanichthys Oreochima Wadeichthys Zaxilepis †Siyuichthyidae Bogdaichthys Dsungarichthys Manasichthys Siyuichthys Wukangia †Pleuropholidae Austropleuropholis Gondwanapleuropholis Parapleuropholis Pleuropholis Zurupleuropholis †Ankylophoridae Ankylophorus Lehmanophorus Neopholidophoropsis Pholidophoristion Siemensichthys Songaichthys Steurbautichthys †Catervariolidae Catervariolus Kisanganichthys Songanella Cycloid clade †Antofagastaichthys †Araripichthys †Cavenderichthys †Koonwarria? †Luisiella †Paraclupavus †Pholidolepis? †Todiltia †Waldmanichthys †Leptolepididae Leptolepis Longileptolepis Proleptolepis †Ascalaboidae Ascalabos Ebertichthys Tharsis †Crossognathiformes see Crossognathiformes †Ichthyodectiformes see Ichthyodectiformes Crown-Teleostei see below↓
Crown-Teleostei Elopomorpha see Elopomorpha †Orthogonikleithridae Cavenderichthys? Leptolepides Orthogonikleithrus Waldmanichthys? Osteoglossomorpha see Osteoglossomorpha †Tselfatiiformes Eoplethodus Protobramidae Abisaadichthys Eusebichthys Protobrama Plethodidae Bachea Bananogmius Concavotectum Dixonanogmius Enischnorhynchus Luxilites Martinichthys Moorevillia Niobrara Paranogmius Pentanogmius Plethodus Pseudonogmius Pseudothryptodus Rhamphoichthys Syntegmodus Thryptodus Tselfatia Zanclites Clupeocephala Otocephala Euteleostei

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• Cretaceous bony fish
• Prehistoric ray-finned fish genera
• Tselfatiiformes
• Cretaceous fish of Africa
• Prehistoric ray-finned fish stubs
• Fossil taxa described in 1850