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Halisaurus platyspondylus

Reptilia - 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), Hay (1902) and Hay (1930); it was recombined as Halisaurus platyspondylus by Marsh (1869), Baird and Case (1966), Russell (1967), Bardet et al. (2005), Fanti et al. (2014) and Driscoll et al. (2019).

Synonymy list
YearName and author
1869Macrosaurus platyspondylus Marsh
1869Halisaurus platyspondylus Marsh pp. 395-397
1870Baptosaurus platyspondylus Cope p. 209
1902Baptosaurus platyspondylus Hay p. 468
1930Baptosaurus platyspondylus Hay p. 264
1966Halisaurus platyspondylus Baird and Case p. 1211
1967Halisaurus platyspondylus Russell p. 169
2005Halisaurus platyspondylus Bardet et al. p. 449
2014Halisaurus platyspondylus Fanti et al.
2019Halisaurus platyspondylus Driscoll et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
RankNameAuthor
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
—Squamata()
familyMosasauridae
—Halisaurinae
—Halisaurini
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.

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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialuc
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, c = class, subp = subphylum, uc = unranked clade
References: Hendy et al. 2009, Carroll 1988, 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)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0USA (Delaware) Halisaurus platyspondylus (126598)
Maastrichtian72.1 - 66.0USA (New Jersey) Halisaurus platyspondylus (26818 57915 99138)
Maastrichtian72.1 - 66.0USA (Maryland) Halisaurus platyspondylus (27563 27564) Mosasauridae indet. (99439)
Late/Upper Maastrichtian - Early/Lower Paleocene70.6 - 61.7USA (New Jersey) Halisaurus platyspondylus (26819)