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

Alligator mississippiensis (American alligator)

Reptilia

Taxonomy
Crocodilus mississippiensis was named by Daudin (1801). It is extant.

It was recombined as Alligator mississippiensis by Daudin (1809), Leidy (1860), Cope (1875), Hay (1902), Mook (1921), Hay (1930), Holman (1959), Brochu (1999), Lang and Guilette (2002), Snyder (2007), May (2019) and Rio and Mannion (2021).

Sister species lacking formal opinion data
A. mississipiensis

Synonymy list
YearName and author
1801Crocodilus mississippiensis Daudin
1809Alligator mississippiensis Daudin
1860Alligator mississippiensis Leidy p. 122
1875Alligator mississippiensis Cope p. 54
1902Alligator mississippiensis Hay p. 514
1921Alligator mississippiensis Mook p. 51
1930Alligator mississippiensis Hay p. 157
1959Alligator mississippiensis Holman p. 123
1999Alligator mississippiensis Brochu
2002Alligator mississippiensis Lang and Guilette p. 213
2007Alligator mississippiensis Snyder p. 918
2019Alligator mississippiensis May
2021Alligator mississippiensis Rio and Mannion

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
RankNameAuthor
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
—Pseudosuchia(Zittel 1890)
—SuchiaKrebs 1974
—Paracrocodylomorpha
—Loricata(Merrem 1820)
—Crocodylomorpha()
—Solidocrania
suborderCrocodyliformes
—MesoeucrocodyliaWhetstone and Whybrow 1983
—NeosuchiaClark 1988
suborderEusuchiaHuxley 1875
—Crocodylia(Owen 1842)
—Alligatoroidea(Gray 1844)
—Globidonta
—Alligatoridae(Gray 1844)
—Alligatorinae(Cuvier 1807)
genusAlligatorDaudin 1809
speciesmississippiensis(Daudin 1801)

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.

Alligator mississippiensis Daudin 1801 [American alligator]
show all | hide all
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marineuc
Locomotion: actively mobilec
Diet: carnivoreuc
Created: 2009-01-03 20:38:59
Modified: 2009-01-03 22:38:59
Source: c = class, subp = subphylum, uc = unranked clade
References: Benton 1983, Bush and Bambach 2015, Carroll 1988, Hendy et al. 2009

Age range: base of the Hemphillian to the top of the Holocene or 10.30000 to 0.00000 Ma

Collections (28 total)


Time interval Ma Country or state Original ID and collection number
Clarendonian12.5 - 9.4USA (Texas) Alligator sp. (18610 18611 18623 18645)
Hemphillian10.3 - 4.9USA (Florida) Alligator mississippiensis (18601)
Blancan4.9 - 1.8USA (Florida) Alligator mississippiensis (19764)
Pleistocene2.588 - 0.0117USA (Florida) Alligator mississippiensis (227368)
Pleistocene2.588 - 0.0117USA (Texas) Alligator mississippiensis (156789)
Pleistocene2.588 - 0.0117USA (South Carolina) Alligator mississippiensis (65405)
Irvingtonian1.8 - 0.3USA (Florida) Alligator mississippiensis (20400 20402 58089)
Middle Pleistocene (interglacial)0.774 - 0.129USA (Mississippi) Alligator mississippiensis (164395)
Middle Pleistocene (glacial)0.774 - 0.129USA (Florida) Alligator mississippiensis (75974)
Rancholabrean0.3 - 0.012USA (Florida) Alligator mississippiensis (20440 20491)
Late/Upper Pleistocene0.129 - 0.0117USA (Florida) Alligator mississippiensis (34269 154804 154805)
Late/Upper Pleistocene (interglacial)0.129 - 0.0117USA (Georgia) Alligator mississippiensis (20604 20613)
Late/Upper Pleistocene (glacial)0.129 - 0.0117USA (Florida) Alligator mississippiensis (154921)
Late/Upper Pleistocene (high glacial)0.129 - 0.0117USA (Texas) Alligator mississippiensis (74470 93103)
Late/Upper Pleistocene0.129 - 0.0117USA (Texas) Alligator mississippiensis (85142 230753)
Holocene0.0117 - 0.0USA (Florida) Alligator mississippiensis (227371)
Holocene0.0117 - 0.0USA (Georgia) Alligator mississippiensis (152113)