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Alligator mefferdi

Osteichthyes

Taxonomy
Alligator mefferdi was named by Mook (1946). Its type specimen is F:AMNH 7016, a partial skeleton, and it is a 3D body fossil. Its type locality is Alligator mefferdi Quarry, which is in a Clarendonian terrestrial horizon in the Ash Hollow Formation of Nebraska.

Sister species lacking formal opinion data
A. mississipiensis
Entered
by J. Alroy on 2007-03-20; modified by J. Alroy on 2013-10-27

Synonymy list
YearName and author
1946Alligator mefferdi Mook p. 1
1999Alligator mefferdi Brochu
2007Alligator mefferdi Snyder p. 920
2021Alligator mefferdi Rio and Mannion

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
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
speciesmefferdi

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 mefferdi Mook 1946
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marineuc
Locomotion: actively mobilec
Life habit: planktonicp
Diet: carnivoreuc
Created: 2009-01-03 20:38:59
Modified: 2009-01-03 22:38:59
Source: c = class, subp = subphylum, p = phylum, uc = unranked clade
References: Kiessling 2004, Bambach et al. 2007, Carroll 1988, Benton 1983, Bush and Bambach 2015, Hendy et al. 2009

Age range: base of the Clarendonian to the top of the Hemphillian or 12.50000 to 4.70000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Clarendonian12.5 - 9.4USA (Nebraska) Alligator mefferdi (type locality: 18028)
Hemphillian9.4 - 4.7USA (Florida) Alligator sp. (18564)