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Halisaurus platyspondylus

Reptilia - Squamata - Mosasauridae

Taxonomy
Macrosaurus platyspondylus was named by Marsh (1869). Its type specimen is YPM 444, a partial skeleton, and it is a 3D body fossil. It is the type species of Baptosaurus, Halisaurus.

It was recombined as Baptosaurus platyspondylus by Cope (1870) and Hay (1902); it was recombined as Halisaurus platyspondylus by Marsh (1869), Baird and Case (1966) and Fanti et al. (2014).

Synonymy list
YearName and author
1869Macrosaurus platyspondylus Marsh
1869Halisaurus platyspondylus Marsh pp. 395-397
1870Baptosaurus platyspondylus Cope p. 209
1902Baptosaurus platyspondylus Hay p. 468
1966Halisaurus platyspondylus Baird and Case p. 1211
2014Halisaurus platyspondylus Fanti et al.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
RankNameAuthor
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Lepidosauromorpha(Benton 1983)
superorderLepidosauria()
orderSquamata
Episquamata
ToxicoferaVidal and Hedges 2005
superfamilyMosasauria
familyMosasauridae
genusHalisaurusMarsh 1869
speciesplatyspondylus(Marsh 1869)

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
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: aquaticf
Diet: carnivoref
Vision: well-developedf
Reproduction: ovoviviparousf
Created: 2018-01-05 16:32:54
Modified: 2018-01-05 16:32:54
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Carroll 1988, Hendy et al. 2009, Gervais 1852

Age range: base of the Maastrichtian to the top of the Early/Lower Maastrichtian or 72.10000 to 66.00000 Ma

Collections (9 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Campanian83.5 - 70.6USA (Delaware) Halisaurus platyspondylus (126599)
Maastrichtian72.1 - 66.0USA (Maryland) Halisaurus platyspondylus (27563 27564 99439)
Maastrichtian72.1 - 66.0USA (New Jersey) Halisaurus platyspondylus (57915 99138)
Early/Lower Maastrichtian70.6 - 66.0USA (New Jersey) Halisaurus platyspondylus (26818)
Early/Lower Maastrichtian70.6 - 66.0USA (Delaware) Halisaurus platyspondylus (126598)
Late/Upper Maastrichtian - Early/Lower Paleocene70.6 - 61.7USA (New Jersey) Halisaurus platyspondylus (26819)