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Eodiaphyodus

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Extinct genus of fishes

Eodiaphyodus Temporal range:Late Cretaceous,Campanian–Maastrichtian PreꞒ Ꞓ O S D C P T J K Pg N

Tooth plate ofE. granulosus from Morocco
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Albuliformes
Family:	†Phyllodontidae
Genus:	†Eodiaphyodus Casieren Dartvelle & Casier, 1949
Type species
†Eodiaphyodus lerichei Casieren Dartvelle & Casier, 1949
Species
?E. granulosusArambourg, 1952 E. lericheiCasieren Dartvelle & Casier, 1949

Eodiaphyodus ("dawnDiaphyodus") is an extinct genus of marinephyllodont ray-finned fish known fromLate Cretaceous sediments across Africa.^[1]^[2] As with other members of its family, it is primarily known by its fossilized tooth plates, which were likely found in the back of its throat and used to crush its food.^[3]

The following species are known:^[1]

?E. granulosusArambourg, 1952 -Maastrichtian & potentiallyPaleocene of Morocco (Ouled Abdoun Basin) and potentially Nigeria (Benue Trough)^[4]
E. lericheiCasieren Dartvelle & Casier, 1949 (type species) - Campanian to Maastrichtian of theDemocratic Republic of the Congo andAngola

A potential third species,E. bebianoiDartevelle & Casier, 1949 from the Paleocene of theDemocratic Republic of the Congo, previously referred toPseudoegertonia, may be a member of this genus, but it is thought to be too fragmentary for a proper taxonomic assessment. The speciesE. granulosus is also sometimes referred toPseudoegertonia, though more recent studies do not follow this classification.^[1]^[5]

The oldest known specimens ofEodiaphyodus were found inCampanian rocks in Angola and Nigeria,^[3] and it is believed that the genus originated in this part of Africa before dispersing northwards (via the Atlantic coast ofWest Africa or via thetrans-Saharan seaway) to reachnorthwestern Africa by theMaastrichtian.^[1]

References

[edit]

^^a ^b ^c ^dVullo, Romain; Courville, Philippe (2014)."Fish remains (Elasmobranchii, Actinopterygii) from the Late Cretaceous of the Benue Trough, Nigeria".Journal of African Earth Sciences.97:194–206.doi:10.1016/j.jafrearsci.2014.04.016.ISSN 1464-343X.
^Halliday, Thomas; Cuff, Andrew R.; Prasad, Guntupalli V. R.; Thanglemmoi, Mechek S.; Goswami, Anjali (2016)."New record of Egertonia (Elopiformes, Phyllodontidae) from the Late Cretaceous of South India".Papers in Palaeontology.2 (2):287–294.doi:10.1002/spp2.1040.S2CID 130394142.
^^a ^bArambourg, C., (1952). Les vertébrés fossiles des gisements de phosphates (Maroc – Algérie – Tunisie).Notes et Mémoires du Service géologique du Maroc 92, 1– 805 372.
^Bellwood, David R.; Schultz, Ortwin; Siqueira Correa, Alexandre C.; Cowman, Peter F. (2019)."A review of the fossil record of the Labridae".Annalen des Naturhistorischen Museums in Wien, Serie A.121:125–193.ISSN 0255-0091.
^Halliday, Thomas; Cuff, Andrew R.; Prasad, Guntupalli V. R.; Thanglemmoi, Mechek S.; Goswami, Anjali (2016)."New record of Egertonia (Elopiformes, Phyllodontidae) from the Late Cretaceous of South India".Papers in Palaeontology.2 (2):287–294.doi:10.1002/spp2.1040.S2CID 130394142.

Elopomorph genera

Kingdom:Animalia
Phylum:Chordata
Class:Actinopterygii
Subclass:Neopterygii
Infraclass:Teleostei

Actinopterygii

- seeActinopterygii

Neopterygii

- seeNeopterygii

Teleostei

seeTeleostei
Elopomorpha	see below↓

Elopomorpha

Elopiformes

†Anaethalion †Aulothrissus †Daitingichthys †Davichthys †Echinelops †Eichstaettia †Elopsomolos †Eoprotelops †Epaelops †Flindersichthys †Ichthyemidion †Leptoelops †Naiathaelon †Protelops
†Phyllodontidae	Egertonia Eodiaphyodus Paralbula Phyllodus Pseudoegertonia
Elopidae	†Ctenodentelops Elops †Kipalelops †Lyrolepis †Protoelops
Megalopidae	†Arratiaelops †Brouweria †Elopoides Megalops †Paratarpon †Promegalops †Protarpon †Sedenhorstia

Albuliformes

†Baugeichthys †Brannerion †Bullichthys †Euroka †Farinichthys †Holcolepis †Lebonichthys †Marathonichthys †Osmeroides †Palealbula †Paraelops †Protalbula †Stewartichthys
Albulidae	Albula †Casierius †Deltaichthys †Elopothrissus †Hajulia †Istieus †Italoalbula Nemoossis †Nunaneichthys †Phosphonatator †Pteralbula Pterothrissus

Notacanthiformes

Notacanthidae	Lipogenys Notacanthus Polyacanthonotus
Halosauridae	Aldrovandia †Echidnocephalus Halosauropsis Halosaurus †Laytonia

Anguilliformes

- seeEels

Category

Taxon identifiers
Eodiaphyodus	Wikidata:Q5381653 GBIF:4839596 IRMNG:1070470 Open Tree of Life:3643823 Paleobiology Database:35364

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References