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

Mosasaurus hoffmannii

Reptilia - Mosasauridae

Taxonomy
Mosasaurus hoffmannii was named by Mantell (1829). Its type specimen is MNHN AC 9648, a skull (Partial cranium), and it is a 3D body fossil. Its type locality is ENCI-Maastricht B.V. quarry (Nekum), which is in a Maastrichtian shallow subtidal chalk in the Maastricht Formation of the Netherlands.

It was synonymized subjectively with Mosasaurus giganteus by Cope (1869).

Sister species lacking formal opinion data
M. anceps

Synonyms
Synonymy list
YearName and author
1829Mosasaurus belgicus Holl p. 84
1829Mosasaurus hoffmannii Mantell
1832Mosasaurus camperi Meyer
1842Mosasaurus hoffmannii Owen p. 144
1851Mosasaurus hoffmannii Gibbes p. 4
1856Mosasaurus hoffmannii Quenstedt p. 133
1859Mosasaurus camperi Gervais p. 461
1869Mosasaurus maximus Cope p. 262
1869Mosasaurus princeps Marsh pp. 392-393
1870Mosasaurus maximus Cope p. 189
1870Mosasaurus fulciatus Cope pp. 194-195
1870Mosasaurus oarthrus Cope p. 196
1885Mosasaurus camperi Schröder p. 324
1902Mosasaurus belgicus Hay p. 464
1902Mosasaurus fulciatus Hay p. 465
1902Mosasaurus maximus Hay p. 466
1902Mosasaurus oarthrus Hay p. 466
1902Mosasaurus princeps Hay p. 466
1928Mosasaurus camperi Perrier p. 3091
1930Mosasaurus belgicus Hay p. 261
1930Mosasaurus fulciatus Hay p. 262
1930Mosasaurus maximus Hay p. 262
1930Mosasaurus oarthrus Hay p. 262
1930Mosasaurus princeps Hay p. 262
1934Mosasaurus camperi Swinton p. 18
1967Mosasaurus hoffmannii Russell p. 122
1967Mosasaurus maximus Russell p. 122
1995Mosasaurus hoffmannii Lingham-Soliar
2005Mosasaurus hoffmannii Gallagher et al.
2012Mosasaurus hoffmannii Mateus et al.
2014Mosasaurus hoffmannii Fanti et al.
2017Mosasaurus hoffmannii Street and Caldwell p. 524
2019Mosasaurus hoffmannii Driscoll et al.
2019Mosasaurus hoffmanni Jiménez-Huidobro et al.

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
RankNameAuthor
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
—Squamata()
familyMosasauridae
subfamilyMosasaurinaeGervais 1853
genusMosasaurus
specieshoffmanniiMantell 1829

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.

†Mosasaurus hoffmannii Mantell 1829
show all | hide all
Invalid names: Mosasaurus belgicus Holl 1829 [synonym], Mosasaurus camperi Meyer 1832 [synonym], Mosasaurus maximus Cope 1869 [synonym]
Diagnosis
ReferenceDiagnosis
H. P. Street and M. W. Caldwell 2017Quadrate tympanic rim with additional anteroventral corner; maxillary tooth count = 13; dentary tooth count = 14; pterygoid tooth count = 8; marginal teeth carinae asymmetric anteri- orly with lingual circumference greater than labial; cer- vical vertebra transverse processes elongate with little ventral buttressing; femur greatly expanded medially and distally with articular surfaces nearly perpendicu- lar; internal trochanter robust and offset.
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: Gervais 1852, Hendy et al. 2009, Carroll 1988

Age range: base of the Late/Upper Campanian to the top of the Early/Lower Maastrichtian or 83.50000 to 66.00000 Ma

Collections (37 total)


Time interval Ma Country or state Original ID and collection number
Campanian83.6 - 72.1Russian Federation (Kaliningrad) Mosasaurus camperi (227275)
Late/Upper Campanian83.5 - 70.6Poland Mosasaurus hoffmanni (116896)
Late/Upper Campanian83.5 - 70.6France Mosasaurus camperi (59676)
Late/Upper Campanian83.5 - 70.6USA (Texas) Mosasauridae indet. (107508)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0USA (Tennessee) Mosasaurus maximus (7515)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0USA (New Jersey) Mosasaurus maximus (57916 221052)
Late/Upper Campanian - Late/Upper Maastrichtian83.5 - 66.0Italy Mosasaurus hoffmanni (156035)
Maastrichtian72.1 - 66.0Angola (Namibe) Mosasaurus hoffmanni (140321)
Maastrichtian72.1 - 66.0USA (Maryland) Mosasaurus maximus (27562 27563 27564 83331)
Maastrichtian72.1 - 66.0USA (New Jersey) Mosasaurus maximus (26818 189419)
Early/Lower Maastrichtian70.6 - 66.0Germany (Mecklenburg-Vorpommern) Mosasaurus hoffmanni (32022)
Early/Lower Maastrichtian70.6 - 66.0Belgium Mosasaurus lemonnieri (82892)
Early/Lower Maastrichtian70.6 - 66.0Denmark Mosasaurus hoffmanni (140266)
Early/Lower Maastrichtian70.6 - 66.0Italy Mosasaurus hoffmanni (156037)
Late/Upper Maastrichtian70.6 - 66.0USA (Missouri) Mosasaurus hoffmanni (97842)
Late/Upper Maastrichtian70.6 - 66.0Bulgaria (Pleven) Mosasaurus hoffmanni (105085)
Late/Upper Maastrichtian70.6 - 66.0Antarctica Mosasaurus hoffmanni (215568)
Late/Upper Maastrichtian70.6 - 66.0Jordan Mosasaurus hoffmanni (170239)
Late/Upper Maastrichtian70.6 - 66.0Poland Mosasaurus hoffmanni (27818 28445)
Late/Upper Maastrichtian70.6 - 66.0Argentina (Río Negro) Mosasaurus hoffmanni (140997)
Late/Upper Maastrichtian70.6 - 66.0Netherlands (Limburg) Mosasaurus hoffmanni (67133 type locality: 138726)
Late/Upper Maastrichtian70.6 - 66.0Turkey (Devrekani) Mosasaurus hoffmanni (96602)
Late/Upper Maastrichtian70.6 - 66.0Spain (Burgos) Mosasaurus hoffmanni (176782)
Late/Upper Maastrichtian70.6 - 66.0Belgium (Limburg) Mosasaurus hoffmanni (51521)
Late/Upper Maastrichtian70.6 - 66.0USA (New Jersey) Mosasaurus maximus (127082 215567) Mosasaurus maximus, Mosasaurus oarthrus (48570) Mosasaurus princeps (88034)
Late/Upper Maastrichtian70.6 - 66.0USA (South Dakota) Mosasaurus hoffmanni (194136)
Late/Upper Maastrichtian - Early/Lower Paleocene70.6 - 61.7USA (New Jersey) Mosasaurus maximus (26819)