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Chelydra (Snapping turtle)

Reptilia - Testudines

Synonyms
Synonymy list
YearName and author
1812Chelydra Schweigger
1875Chelydra Cope p. 16
1884Chelydra Cope
1889Chelydra Lydekker p. 134
1902Chelydra Hay
1905Devisia Ogilby
1908Chelydra Hay p. 223
1981Chelydra Holman and Sullivan p. 139
1988Chelydra Carroll
1989Chelydra Shoshani et al. p. 436
1993Chelydra de Broin and de la Fuente p. 11
1996Chelydra Frank and Ramus
2008Chelydra Hutchison
2008Chelydra Pérez-García et al.
2009Chelydra Anquetin et al.
2011Chelydra Knauss et al.
2011Chelydra Pérez-García and Ortega
2012Chelydra Pérez-García
2014Chelydra de la Fuente et al.
2014Chelydra van Dijk et al.
2017Chelydra 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()
genusChelydraSchweigger 1812

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 1908No supramarginal scutes. Orbit directed outward and upward. Tail with large scutes inferiorly (Boulenger).
Measurements
partNmeanminimummaximum
carapace height330131.5130.0133.0

Composition: phosphaticsubp
Body part: carapacef
Adult length: 100 to < 1000f
Grouping: solitaryf
Environment: freshwaterf
Locomotion: actively mobilec
Life habit: aquaticf
Diet: piscivoref
Reproduction: oviparousf
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 Barstovian to the top of the Holocene or 15.97000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 13.6 Ma

Collections (23 total)


Time interval Ma Country or state Original ID and collection number
Barstovian15.97 - 13.6USA (Nebraska) Chelydra sp. (18442)
Late/Upper Clarendonian13.6 - 10.3USA (Florida) Chelydra sp. (18554)
Late/Upper Hemphillian - Blancan10.3 - 1.8USA (Tennessee) Chelydra sp. (26574)
Late/Upper Hemphillian - Blancan10.3 - 1.8USA (Indiana) Chelydra serpentina (18320)
Blancan4.9 - 1.8USA (Florida) Chelydra floridana (19752 113275)
Blancan4.9 - 1.8USA (Nebraska) Chelydra serpentina (19960)
Blancan4.9 - 1.8USA (Kansas) Chelydra serpentina (19940)
Pleistocene2.588 - 0.0117USA (Maryland) Chelydra serpentina (127111)
Pleistocene2.588 - 0.0117Ecuador (Santa Elena) Chelydra sp. (185514)
Pleistocene2.588 - 0.0117USA (South Carolina) Chelydra serpentina (65405)
Irvingtonian1.8 - 0.3USA (Florida) Chelydra floridana (20308 20400)
Irvingtonian1.8 - 0.3USA (Kansas) Chelydra serpentina (20390 20422)
Rancholabrean0.3 - 0.012USA (Florida) Chelydra serpentina (20440)
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 (interglacial)0.126 - 0.0117USA (Georgia) Chelydra serpentina (20604 20613)
Holocene0.0117 - 0.0USA (Georgia) Chelydra serpentina (152113)