PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Allognathosuchus

Reptilia

Taxonomy

Allognathosuchus was named by Mook (1921). Its type is Diplocynodus polyodon. It is the type genus of Allognathosuchidae.

It was assigned to Crocodilia by Mook (1921); to Allognathosuchidae by Case (1925); to Crocodilidae by Simpson (1930); to Crocodylidae by Hay (1930); to Alligatoridae by Gilmore (1946), Bjork (1967) and Carroll (1988); to Alligatorinae by Wu et al. (1996), Brochu (1999), Jouve et al. (2008), Martin and Lauprasert (2010) and Pinheiro et al. (2013); to Globidonta by Farke et al. (2014); and to Alligatorinae by Rio and Mannion (2021).

Species

A. heterodon, A. polyodon, A. wartheni, A. woutersi

Species lacking formal opinion data

A. brevirostris, A. weigelti

Synonymy list

Year	Name and author
1921	Allognathosuchus Mook p. 108
1925	Allognathosuchus Case p. 97
1930	Allognathosuchus Hay p. 155
1930	Allognathosuchus Simpson p. 13
1946	Allognathosuchus Gilmore p. 67
1967	Allognathosuchus Bjork p. 230
1988	Allognathosuchus Carroll
1996	Allognathosuchus Wu et al.
1999	Allognathosuchus Brochu
2008	Allognathosuchus Jouve et al.
2010	Allognathosuchus Martin and Lauprasert
2013	Allognathosuchus Pinheiro et al.
2014	Allognathosuchus Farke et al.
2021	Allognathosuchus Rio and Mannion

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
—	Sauropsida
class	Reptilia
subclass	Eureptilia	()
—	Romeriida
—	Diapsida	()

Rank	Name	Author
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
—	Pseudosuchia	(Zittel 1890)
—	Suchia	Krebs 1974
—	Paracrocodylomorpha
—	Loricata	(Merrem 1820)
—	Crocodylomorpha	()
—	Solidocrania
suborder	Crocodyliformes
—	Mesoeucrocodylia	Whetstone and Whybrow 1983
—	Neosuchia	Clark 1988
suborder	Eusuchia	Huxley 1875
—	Crocodylia	(Owen 1842)
—	Alligatoroidea	(Gray 1844)
—	Globidonta
—	Alligatoridae	(Gray 1844)
—	Alligatorinae	(Cuvier 1807)
genus	Allognathosuchus

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.

G. †Allognathosuchus Mook 1921

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†Allognathosuchus heterodon Cope 1873

†Allognathosuchus polyodon Cope 1873

†Allognathosuchus wartheni Case 1925

†Allognathosuchus woutersi Buffetaut 1985

Diagnosis

Reference	Diagnosis
C. C. Mook 1921	Dental series short in comparison with post-dental portion of jaw; prominent elevation or process on dentary bone; abrupt elevation from dental border to surangular border; teeth arranged in definite groups, sharply set off from each other in size; all teeth close together.

Measurements

No measurements are available

Composition:

phosphaticsubp

Environment:

freshwaterg

Locomotion:

actively mobilec

Life habit:

amphibiousg

Diet:

carnivoreg

Created:

2005-09-23 11:52:31

Modified:

2005-09-23 13:52:31

Source: g = genus, c = class, subp = subphylum

References: Carroll 1988, Sullivan and Lucas 2003, Hendy et al. 2009

Age range: base of the Maastrichtian to the top of the Late/Upper Eocene or 72.10000 to 33.90000 Ma

Collections (132 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Campanian	83.5 - 70.6	USA (New Jersey)	A. sp. (14455)
Maastrichtian	72.1 - 66.0	USA (Maryland)	Goniopholis sp. (83331)
Lancian	70.6 - 66.0	USA (Wyoming)	A. sp. (14542 75283)
Puercan	66.0 - 63.3	USA (Wyoming)	A. sp. (14713 14729 14730 14735 14796 14805 75282 75427)
Puercan	66.0 - 63.3	USA (Utah)	A. sp. (14670 14692 14736 14739 14748 14790)
Puercan	66.0 - 63.3	USA (Colorado)	A. sp. (14658 14774)
Danian	66.0 - 61.6	Argentina (Chubut)	A. sp. (95914)
Torrejonian	63.8 - 60.9	USA (Utah)	Crocodylia indet. (14830)
Tiffanian	61.7 - 56.8	USA (Wyoming)	A. sp. (15049 46653)
Cf3	56.2 - 54.9	USA (Wyoming)	A. sp. (46676)
Clarkforkian	56.2 - 54.9	USA (Wyoming)	A. sp. (15217) A. wartheni (15114 15119 15208)
Ypresian	56.0 - 47.8	France (Oise)	A. sp. (68174)
Ypresian	56.0 - 47.8	Belgium (Brabant)	A. woutersi (35531)
Ypresian	56.0 - 47.8	France (Île-de-France)	A. sp. (68437)
Graybullian	55.8 - 50.3	USA (Wyoming)	A. sp. (15701)
Lostcabinian	55.8 - 50.3	USA (Wyoming)	A. sp. (15917 15997)
Wasatchian	55.8 - 50.3	USA (Wyoming)	A. heterodon (46645 46646) A. sp. (15586 15589 15590 15592 15593 15594 15665 15682 15683 15687 15688 15694 15695 15698 15699 15702 15704 15705 15706 15707 15759 15780 15793 15830 15832 46637 46639 46641 46642 46644 46650 46652 46659 46661 46663 46672 46682 46683 46685 46688 46689 46690 46694 46720 46721 46728 46731 46732 46733 46734 46736 46739 46753 46759 46760 46768 46769 46771 46772 46777 46780 46782 46792 46795 46797 46798 46803 46807 46808 46809 46810 46814 46817 46824 46825 46833 46834 46840 46841 118482) A. wartheni (76067)
Wasatchian	55.8 - 50.3	Canada (Northwest Territories)	A. sp. (15583)
MP 10	55.8 - 48.6	France (Picardie)	A. sp. (68440)
Bridgerian	50.3 - 46.2	USA (Wyoming)	A. polyodon (16228) A. sp. (15668 16261 16268 16272 16296 70266)
Lutetian	47.8 - 41.3	Germany (Sachsen-Anhalt)	A. brevirostris (45002) A. brevirostris, A. weigelti (13322)
Early/Lower Uintan	46.2 - 39.7	USA (Colorado)	A. polyodon (16623)
Late/Upper Uintan	46.2 - 39.7	USA (Texas)	A. sp. (16542)
Late/Upper Eocene	37.2 - 33.9	Thailand	A. sp. (49078)