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Chelydroidea

Reptilia - Testudines

Taxonomy
Chelydroidea was named by Baur (1893). It is extant. Its type is Chelydra.

It was reranked as the unranked clade Chelydroidea by Knauss et al. (2011).

It was assigned to Cryptodira by Baur (1893); and to Cryptodira by Knauss et al. (2011).

Synonymy list
YearName and author
1893Chelydroidea Baur p. 673
2011Chelydroidea Knauss et al.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
RankNameAuthor
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
Testudinata(Oppel 1811)
orderTestudinesBatsch 1788
suborderCryptodira
Chelydroidea()
Chelydroidea()

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
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: freshwatersubo
Locomotion: actively mobilec
Life habit: aquaticsubo
Diet: omnivoresubo
Reproduction: oviparoussubo
Created: 2005-08-26 14:49:00
Modified: 2005-08-26 16:49:00
Source: subo = suborder, c = class, subp = subphylum
References: Kiessling 2004, Uetz 2005, Carroll 1988, Hendy et al. 2009

Age range

Maximum range based only on fossils: base of the Late/Upper Barremian to the top of the Holocene or 130.00000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 125.45 Ma

Collections (269 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Late/Upper Barremian130.0 - 125.45Spain (Cuenca) Chelydroidea indet. (61319)
Late/Upper Albian - Cenomanian105.3 - 93.9USA (Montana) Chelydridae indet. (137590)
Late/Upper Santonian - Early/Lower Campanian85.8 - 70.6USA (Montana) Chelydridae indet. (22689)
Campanian83.6 - 72.1Canada (Alberta) Chelydridae indet. (45819 45821 45894)
Campanian83.6 - 72.1Mexico (Baja California) Chelydridae indet. (197023)
Early/Lower Campanian83.5 - 70.6Canada (Alberta) Chelydridae indet. (181024)
Judithian83.5 - 70.6USA (Montana) Chelydridae indet. (14453)
Judithian83.5 - 70.6USA (Wyoming) Chelydridae indet. (14458)
Late/Upper Campanian83.5 - 70.6Canada (Alberta) Chelydridae indet. (22695 22696 22697 22698 22699 34302 34305 34307 34309 34310 34311 34320 34321 34322 45238 45260 45261 45262 45264 45671 45822 45892 45893 45897 45898 45899 47784 47793 47814 47816 98674 98677)
Late/Upper Campanian83.5 - 70.6Mexico (Coahuila) Chelydridae indet. (24261) Protochelydra sp. (24257)
Late/Upper Campanian83.5 - 70.6USA (Utah) Chelydridae indet. (187656 187658 187672 187700 187709 187710 187714 187715) Lutemys warreni (190747)
Middle Campanian83.5 - 70.6Canada (Alberta) Chelydridae indet. (45240 45560 45561 45564 45565 45566 45567 47794 47795)
Middle Campanian - Late/Upper Campanian83.5 - 70.6Canada (Alberta) Chelydridae indet. (167986)
Middle Campanian - Late/Upper Campanian83.5 - 70.6Canada (Saskatchewan) Chelydridae indet. (14494)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0France (Provence-Alpes-Côte d'Azur) Chelydroidea indet. (48849)
Maastrichtian72.1 - 66.0USA (Montana) Chelydridae indet. (47626 85498 85499)
Maastrichtian72.1 - 66.0USA (Wyoming) Chelydridae indet. (137798)
Maastrichtian72.1 - 66.0USA (South Dakota) Chelydridae indet. (45390)
Maastrichtian72.1 - 66.0USA (North Dakota) Chelydridae indet. (45099 45109 45110 45111 45118 45130 45133 45135 45136 45143 45144 45145 45299 45309 137720) Chelydridae indet., Emarginochelys cretacea (137718)
Early/Lower Maastrichtian70.6 - 66.0Canada (Alberta) Chelydridae indet. (135739)