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Chelydridae

Reptilia - Testudines

Synonyms
Synonymy list
YearName and author
1835Emysaurus Dumeril and Bibron
1835Hydraspis oeningensis Fitzinger
1836Hydraspis oeningensis Fitzinger
1839Chelydridae Swainson
1846Emysaurus meilheuratiae Pomel
1851Emys sansaniensis Lartet
1875Chelydridae Cope p. 16
1889Chelydridae Lydekker p. 133
1890Chelydridae Zittel p. 532
1893Chelydridae Baur p. 673
1900Chelydra argillarum Laube
1903Chelydridae Stefano p. 74
1908Chelydridae Hay p. 221
1908Chelydridae Lambe
1934Chelydropsis nopcsai Szalai
1946Chelydridae Kuhn p. 58
1951Emys sansaniensis Lartet
1959Testudo grandis Macarovici and Vancea
1965Broilia Bergounioux and Crouzel
1965Broilia robusta Bergounioux and Crouzel
1965Leptochelys Bergounioux and Crouzel
1965Leptochelys braneti Bergounioux and Crouzel
1966Chelydridae Kuhn p. 25
1966Chelydra strausi Schmidt
1971Chelydropsis minax Ckhikvadze
1971Chelydropsis poena Ckhikvadze
1975Chelydridae Gaffney p. 429
1988Broilia Carroll
1988Chelydridae Carroll
1989Chelydridae Shoshani et al. p. 436
1993Chelydridae de Broin and de la Fuente p. 11
1996Chelydridae Frank and Ramus
2001Chelydridae Peng et al. p. 23
2002Chelydridae Holroyd and Hutchison p. 181
2003Chelydridae Hutchison and Holroyd
2004Chelydridae Joyce et al.
2008Chelydridae Böhme p. 168
2008Chelydridae Danilov and Parham
2008Chelydrasia minax Hutchison
2008Chelydrasia poena Hutchison
2008Chelydropsis nopcsai Hutchison
2011Chelydridae Knauss et al.
2013Chelydridae Brinkman
2013Chelydridae Hutchison et al.
2014Chelydridae van Dijk et al.
2016Chelydridae Joyce
2017Chelydridae Cadena et al.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
RankNameAuthor
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
Testudinata(Oppel 1811)
orderTestudinesBatsch 1788
suborderCryptodira
Chelydroidea()
PanchelydridaeJoyce et al. 2004
Chelydridae()
Chelydridae()

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
O. P. Hay 1908Plastron loosely joined to the carapace; consisting of nine elements and considerably reduced. The entoplastron T-shaped; the bridge narrow. Nuchal bone with long costiform processes. A full series of neurals. Skull with temporal region incompletely rooft over; the postfrontal bones large. Quadrate notcht for passage of the stapedial rod. Crushing-surfaces without ridges and processes. Caudal vertebrae mostly opisthoccelous.
Measurements
No measurements are available
Composition: phosphaticsubp
Body part: carapacef
Adult length: 100 to < 1000f
Grouping: solitaryf
Environment: freshwaterf
Locomotion: actively mobilec
Life habit: aquaticf
Diet: piscivoref
Reproduction: oviparousf
Comments: Oops, my bad on the length units. JJH. carapace length incorrectly entered as 0.1 < 1.0 mm; revised assuming this means meters life habit and diet based on Uetz 2005; originally entered from some other source as amphibious and carnivore-piscivoref
Created: 2005-08-25 13:50:05
Modified: 2005-09-09 19:46:40
Source: f = family, c = class, subp = subphylum
References: Carroll 1988, Ernst and Barbour 1989, Hendy et al. 2009

Age range

Maximum range based only on fossils: base of the Late/Upper Albian to the top of the Holocene or 105.30000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 93.9 Ma

Collections (163 total)


Time interval Ma Country or state Original ID and collection number
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 - 72.1Mexico (Baja California) Chelydridae indet. (197023)
Campanian83.6 - 72.1Canada (Alberta) Chelydridae indet. (45819 45821 45894)
Early/Lower Campanian83.5 - 70.6Canada (Alberta) Chelydridae indet. (181024)
Judithian83.5 - 70.6USA (Wyoming) Chelydridae indet. (14458)
Judithian83.5 - 70.6USA (Montana) Chelydridae indet. (14453)
Late/Upper Campanian83.5 - 70.6USA (Utah) Chelydridae indet. (187656 187658 187672 187700 187709 187710 187714 187715)
Late/Upper Campanian83.5 - 70.6Mexico (Coahuila) Chelydridae indet. (24261)
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)
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 (Saskatchewan) Chelydridae indet. (14494)
Middle Campanian - Late/Upper Campanian83.5 - 70.6Canada (Alberta) Chelydridae indet. (167986)
Maastrichtian72.1 - 66.0USA (Montana) Chelydridae indet. (47626 85498 85499)
Maastrichtian72.1 - 66.0USA (North Dakota) Chelydridae indet. (45099 45109 45110 45111 45118 45130 45133 45135 45136 45143 45144 45145 45299 45309 137718 137720)
Maastrichtian72.1 - 66.0USA (South Dakota) Chelydridae indet. (45390)
Maastrichtian72.1 - 66.0USA (Wyoming) Chelydridae indet. (137798)
Early/Lower Maastrichtian70.6 - 66.0Canada (Alberta) Chelydridae indet. (135739)
Lancian70.6 - 66.0USA (North Dakota) Chelydridae indet. (14610 137706 137707 137710 137711 137713 137715 137724 137731)
Lancian70.6 - 66.0USA (Wyoming) Chelydridae indet. (14566) Chelydridae indet., C. sp. (14505 14570) C. sp. (14519 14538 14564 14565 14579)
Lancian70.6 - 66.0USA (Montana) Chelydridae indet. (14508 14513 14533 14536 14582 14615 14653)
Lancian70.6 - 66.0Canada (Saskatchewan) Chelydridae indet. (14555)
Late/Upper Maastrichtian70.6 - 66.0USA (Wyoming) Chelydridae indet., C. sp. (14585)
Puercan66.0 - 63.3USA (Montana) Hoplochelys caelata (177319)
Tiffanian61.7 - 56.8USA (Colorado) Chelydridae indet. (176834)
Tiffanian61.7 - 56.8Canada (Alberta) Chelydridae indet. (119816)
Thanetian59.2 - 56.0Belgium (Liege) Chelydridae indet. (193460)
Wasatchian55.8 - 50.3USA (New Mexico) Chelydridae indet. (197330 197331)
Duchesnean40.4 - 37.2USA (Oregon) C. sp. (16842)
Duchesnean40.4 - 37.2USA (Utah) Chelydridae indet. (16877)
Miocene23.03 - 5.333Germany (Bayern) Macrochelys mira (48512)
Burdigalian20.44 - 15.97Czech Republic (Ústí nad Labem) Chelydra argillarum (185325)
Hemingfordian20.43 - 15.97USA (Florida) Macrochelys sp. (18561)
Hemingfordian20.43 - 15.97USA (Nebraska) Chelydrops stricta (17904) Macroclemys schmidti (34754)
Barstovian15.97 - 13.6USA (Nebraska) Chelydra sp. (18442) Macroclemys sp. (18275 18284)
Early/Lower Barstovian15.97 - 13.6USA (Florida) Macrochelys sp. (18549)
Langhian - Serravallian15.97 - 11.62France (Midi-Pyrenees) Broilia robusta, Leptochelys braneti, Emys sansaniensis (32191)
Late/Upper Clarendonian13.6 - 10.3USA (Florida) Chelydra sp. (18554)
Hemphillian10.3 - 4.9USA (Florida) Macroclemys auffenbergi (18560)
Late/Upper Hemphillian10.3 - 4.9USA (Nebraska) Macroclemys temmincki (18126)
Late/Upper Hemphillian - Blancan10.3 - 1.8USA (Tennessee) Chelydra sp. (26574)
Late/Upper Hemphillian - Blancan10.3 - 1.8USA (Indiana) Chelydra serpentina (18320)
Zanclean5.333 - 3.6USA (Florida) Macrochelys sp. (18535)
Pliocene5.333 - 2.588Romania (Southern Moldavia) Testudo grandis (39424)
Blancan4.9 - 1.8USA (Florida) Macrochelys sp., Chelydra floridana (19752) Macroclemys sp., Chelydra floridana (113275) Macroclemys temmincki (19753 19764)
Blancan4.9 - 1.8USA (Nebraska) Chelydra serpentina (19960)
Blancan4.9 - 1.8USA (Kansas) Macroclemys temmincki, Chelydra serpentina (19940)
Piacenzian3.6 - 2.588Germany (Niedersachsen) Chelydra strausi (109196)
Pleistocene2.588 - 0.0117USA (South Carolina) Chelydra serpentina (65405)
Pleistocene2.588 - 0.0117Ecuador (Santa Elena) Chelydra sp. (185514)
Pleistocene2.588 - 0.0117USA (Maryland) Chelydra serpentina (127111)
Irvingtonian1.8 - 0.3USA (Kansas) Chelydra serpentina (20390 20422)
Irvingtonian1.8 - 0.3USA (Florida) Chelydridae indet. (58089) Macrochelys sp. (20403) Macrochelys sp., Chelydra floridana (20308) Macroclemys temmincki (20402) Macroclemys temmincki, Chelydra floridana (20400)
Rancholabrean0.3 - 0.012USA (Florida) Macroclemys temmincki, Chelydra serpentina (20440)
Late/Upper Pleistocene (interglacial)0.126 - 0.0117USA (Georgia) Chelydra serpentina (20604 20613)
Late/Upper Pleistocene0.126 - 0.0117USA (South Carolina) Macrochelys sp. (188304)
Late/Upper Pleistocene0.126 - 0.0117USA (Virginia) Chelydra serpentina (82258 103358)
Late/Upper Pleistocene0.126 - 0.0117USA (Florida) Chelydra laticarinata, Chelydra sculpta (34269) Chelydra serpentina (154805)
Late/Upper Pleistocene (glacial)0.126 - 0.0117USA (Mississippi) Macrochelys temminckii (164396)
Holocene0.0117 - 0.0USA (Ohio) Chelydridae indet. (195062 195066)
Holocene0.0117 - 0.0USA (Georgia) Chelydra serpentina (152113)