PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Montanoceratops

Reptilia - Leptoceratopsidae

Taxonomy

Montanoceratops was named by Sternberg (1951).

It was assigned to Protoceratopidae by Olshevsky and Ford (1994); to Protoceratopsidae by Romer (1956), Tatarinov (1964), Kuhn (1964), Romer (1966), Swinton (1970), Maryanska and Osmólska (1975), Russell (1984), Ostrom and Wellnhofer (1986), Carroll (1988), Dodson and Currie (1990), Kurzanov (1992), Dodson (1997) and Dodson (1997); to Ceratopsoidea by Sereno (1986), Sereno (1997), Sereno (1998), Sereno (1999), Sereno (2000) and Lambert et al. (2001); to Neoceratopsia by Chinnery and Weishampel (1996), Chinnery and Weishampel (1998), Wolfe and Kirkland (1998) and You and Dodson (2004); and to Leptoceratopsidae by Makovicky (2001), You and Dodson (2003), Chinnery (2004), Chinnery and Horner (2007), Ryan et al. (2012), Farke et al. (2014), Zheng et al. (2015), Morschhauser et al. (2019) and Morschhauser et al. (2019).

Species

M. cerorhynchus

Synonymy list

Year	Name and author
1951	Montanoceratops Sternberg p. 227
1956	Montanoceratops Romer p. 638
1964	Montanoceratops Kuhn p. 53
1964	Montanoceratops Tatarinov p. 581
1966	Montanoceratops Romer p. 370
1970	Montanoceratops Swinton p. 258
1975	Montanoceratops Maryanska and Osmólska p. 170
1984	Montanoceratops Russell p. 26
1986	Montanoceratops Ostrom and Wellnhofer p. 116
1986	Montanoceratops Sereno
1988	Montanoceratops Carroll
1990	Montanoceratops Dodson and Currie p. 611
1992	Montanoceratops Kurzanov p. 104
1994	Montanoceratops Olshevsky and Ford
1996	Montanoceratops Chinnery and Weishampel p. 27A
1997	Montanoceratops Dodson p. 12
1997	Montanoceratops Sereno p. 440 fig. 2
1998	Montanoceratops Chinnery and Weishampel pp. 578-579 fig. 10
1998	Montanoceratops Sereno p. 68 fig. 6
1998	Montanoceratops Wolfe and Kirkland p. 307 fig. 5
1999	Montanoceratops Sereno p. 2138 fig. 2
2000	Montanoceratops Sereno p. 498 fig. 25.8
2001	Montanoceratops Lambert et al. p. 18
2001	Montanoceratops Makovicky p. 254 fig. 18.3
2003	Montanoceratops You and Dodson
2004	Montanoceratops Chinnery pp. 584-585 fig. 9
2004	Montanoceratops You and Dodson p. 480
2007	Montanoceratops Chinnery and Horner p. 638 fig. 6
2012	Montanoceratops Ryan et al. p. 77 fig. 7
2014	Montanoceratops Farke et al.
2015	Montanoceratops Zheng et al. p. 6 fig. 3
2019	Montanoceratops Morschhauser et al. p. 95

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
—	Sauropsida
class	Reptilia
subclass	Eureptilia	()
—	Romeriida

Rank	Name	Author
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Ornithischia	()
—	Genasauria
—	Cerapoda
—	Marginocephalia
—	Ceratopsia	()
infraorder	Neoceratopsia
—	Coronosauria
family	Leptoceratopsidae	()
genus	Montanoceratops

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.

G. †Montanoceratops Sternberg 1951

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†Montanoceratops cerorhynchus Brown and Schlaikjer 1942

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

hydroxyapatiteo

Entire body:

yesg

Adult length:

10 to < 100o

Adult width:

1.0 to < 10o

Adult height:

1.0 to < 10o

Maximum body mass:

1000 kgg

Minimum body mass:

300 kgg

Architecture:

compact or denseo

Ontogeny:

accretion, modification of partso

Grouping:

gregariouso

Environment:

terrestrialsubo

Locomotion:

actively mobileo

Life habit:

ground dwellingsubo

Diet:

herbivoresubo

Reproduction:

oviparouso

Dispersal:

direct/internalo

Dispersal 2:

mobileo

Created:

2005-08-25 05:47:43

Modified:

2005-08-25 07:47:43

Source: g = genus, subo = suborder, o = order

References: Norman and Weishampel 1991, Peczkis 1995, Marsh 1875

Age range: Early/Lower Maastrichtian or 70.60000 to 66.00000 Ma

Collections (3 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Campanian - Early/Lower Maastrichtian	83.5 - 66.0	Canada (Alberta)	Ceratopsia indet. (51965)
Early/Lower Maastrichtian	70.6 - 66.0	USA (Montana)	Ceratopsia indet. (55266) M. cerorhynchus (55267)