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Allognathosuchus polyodon

Reptilia - Alligatoridae

Taxonomy
Diplocynodus polyodon was named by Cope (1873). Its type specimen is U.S.N.M. No. 4112, a mandible (left ramus of a lower jaw), and it is a 3D body fossil.

It was recombined as Crocodilus polyodon by Cope (1882); it was recombined as Crocodylus polyodon by Hay (1902); it was recombined as Allognathosuchus polyodon by Mook (1921), Case (1925), Simpson (1930), Mook (1961), Brochu (1999) and Brochu (2004).

Sister species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1873Diplocynodus polyodon Cope p. 614
1882Crocodilus polyodon Cope p. 981
1902Crocodylus polyodon Hay p. 513
1921Allognathosuchus polyodon Mook pp. 108-109
1925Allognathosuchus polyodon Case p. 93–94
1930Allognathosuchus polyodon Simpson p. 3
1960Diplocynodus polyodon Mook p. 1
1961Allognathosuchus polyodon Mook p. 1
1999Allognathosuchus polyodon Brochu
2004Allognathosuchus polyodon Brochu

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
RankNameAuthor
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
Pseudosuchia(Zittel 1890)
SuchiaKrebs 1974
Paracrocodylomorpha
Loricata(Merrem 1820)
Crocodylomorpha()
suborderCrocodyliformes
MesoeucrocodyliaWhetstone and Whybrow 1983
NeosuchiaClark 1988
suborderEusuchiaHuxley 1875
Crocodylia(Owen 1842)
BrevirostresCuvier
superfamilyAlligatoroideaGray 1844
Globidonta
familyAlligatoridaeGray 1844
subfamilyAlligatorinaeCuvier 1807
genusAllognathosuchus
speciespolyodon(Cope 1873)

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
ReferenceDiagnosis
C. C. Mook 1921Two very large teeth, separated by eight small teeth facing obliquely outward as well as upward. Jaw relatively narrow.