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Crocodilus antiquus

Reptilia

Taxonomy
Crocodilus antiquus was named by Leidy (1852). Its type specimen is ANSP 9188 and 9189, a partial skeleton (2 teeth, 2 vertebrae, a rib fragment, and an ungual phalanx), and it is a 3D body fossil. Its type locality is Potomac River, Stratford Hall Plantation, which is in a Serravallian marine horizon in the Choptank Formation of Virginia.

It was recombined as Crocodylus antiquus by Leidy (1852), Hay (1902) and Hay (1930); it was recombined as Thecachampsa antiqua by Cope (1869), Myrick (2001), Jouve (2016) and Hastings and Dooley (2017); it was recombined as Thecachampsa antiquus by Weems (2018) and Rio and Mannion (2021).

Synonyms
  • Thecachampsa contusor was named by Cope (1867). Its type specimen is ANSP 9152, a tooth, and it is a 3D body fossil. Its type locality is James T. Thomas estate, which is in a Serravallian offshore shelf horizon in the Calvert Formation of Maryland.

    It was recombined as Crocodylus contusor by Hay (1930); it was synonymized subjectively with Thecachampsa antiqua by Myrick (2001); it was synonymized subjectively with Thecachampsa antiquus by Weems (2018).
Synonymy list
YearName and author
1852Crocodylus antiquus Leidy
1852Crocodilus antiquus Leidy p. 138
1867Thecachampsa contusor Cope p. 143
1869Thecachampsa antiqua Cope p. 12
1902Crocodylus antiquus Hay p. 512
1930Crocodylus antiquus Hay p. 153
1930Crocodylus contusor Hay p. 153
2001Thecachampsa antiqua Myrick p. 223
2016Thecachampsa antiqua Jouve
2017Thecachampsa antiqua Hastings and Dooley p. 83
2018Thecachampsa antiquus Weems p. 218
2021Thecachampsa antiquus Rio and Mannion

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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)
—LongirostresCuvier
—Crocodyloidea(Deraniyagala 1939)
—Crocodylidae(Cuvier 1807)
—Crocodylinae(Cuvier 1807)
genusCrocodilusLaurenti 1768
speciesantiquus

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.

†Crocodilus antiquus Leidy 1852
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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: Hendy et al. 2009, Bush and Bambach 2015, Benton 1983, Carroll 1988

Age range: Serravallian or 13.82000 to 11.62000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Serravallian13.82 - 11.62USA (Virginia) Crocodilus antiquus (type locality: 106061)