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Leptoceratops gracilis

Reptilia - Leptoceratopsidae

Taxonomy
Leptoceratops gracilis was named by Brown (1914). Its type specimen is AMNH 5205, a partial skeleton, and it is a 3D body fossil. Its type locality is 3 miles above Tolman Ferry (190 ft level) [AMNH], which is in a Maastrichtian terrestrial claystone/sandstone in the Scollard Formation of Canada.

Synonymy list
YearName and author
1914Leptoceratops gracilis Brown p. 567
1925Leptoceratops gracilis Parks p. 5
1927Leptoceratops gracilis Huene p. 261
1930Leptoceratops gracilis Hay p. 226
1930Leptoceratops gracilis Russell p. 151
1930Leptoceratops gracilis Wiman p. 12
1933Leptoceratops gracilis Lull p. 78
1933Leptoceratops gracilis Russell p. 129
1942Leptoceratops gracilis Brown and Schlaikjer p. 2
1950Leptoceratops gracilis Sternberg p. 229
1951Leptoceratops gracilis Sternberg p. 225
1964Leptoceratops gracilis Kuhn p. 53
1964Leptoceratops gracilis Russell p. 19
1964Leptoceratops gracilis Tatarinov p. 581
1966Leptoceratops gracilis Russell p. 14
1967Leptoceratops gracilis Charig p. 717
1970Leptoceratops gracilis Demathieu p. 152
1970Leptoceratops gracilis Russell pp. 181-182
1975Leptoceratops gracilis Maryanska and Osmólska p. 170
1978Leptoceratops gracilis Ostrom p. 697
1980Leptoceratops gracilis Drake p. 195
1984Leptoceratops gracilis Russell p. 33
1985Leptoceratops gracilis Breithaupt p. 170
1990Leptoceratops gracilis Dodson and Currie p. 611
1994Leptoceratops gracilis Dong and Currie p. 2249
1996Leptoceratops gracilis Lehman p. 505
1996Leptoceratops gracilis Rich p. 711
1997Leptoceratops gracilis Eberth p. 202
2001Leptoceratops gracilis Eberth et al. p. 66
2001Leptoceratops gracilis Makovicky pp. 253-254
2003Leptoceratops gracilis Tereshchenko and Alifanov p. 293
2004Leptoceratops gracilis Chinnery p. 573
2004Leptoceratops gracilis You and Dodson p. 480
2005Leptoceratops gracilis Ryan and Evans p. 323
2006Leptoceratops gracilis Campione and Holmes p. 1014
2007Leptoceratops gracilis Ott p. 214
2007Leptoceratops gracilis Tereshchenko p. 175
2008Leptoceratops gracilis Butler et al. p. 8
2009Leptoceratops gracilis Tanoue et al. p. 434
2010Leptoceratops gracilis Makovicky p. 68
2010Leptoceratops gracilis McDonald and Horner p. 159
2011Leptoceratops gracilis Maidment and Barrett p. 42
2012Leptoceratops gracilis Handa et al. p. 180
2012Leptoceratops gracilis Ryan et al. p. 69
2013Leptoceratops gracilis Tereshchenko and Singer p. 619
2014Leptoceratops gracilis Rich et al. p. 456
2014Leptoceratops gracilis Tanoue and Okazaki p. 80

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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
RankNameAuthor
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—Cerapoda
—Marginocephalia
—Ceratopsia()
infraorderNeoceratopsia
familyLeptoceratopsidae()
genusLeptoceratops
speciesgracilis

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.

†Leptoceratops gracilis Brown 1914
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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
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 05:48:20
Modified: 2005-08-25 07:48:20
Source: g = genus, subo = suborder, o = order
References: Marsh 1875, Peczkis 1995, Norman and Weishampel 1991

Age range: Late/Upper Maastrichtian or 72.20000 to 66.00000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Maastrichtian72.2 - 66.0USA (Montana) Leptoceratops gracilis (73947 73948)
Late/Upper Maastrichtian72.2 - 66.0Canada (Alberta) Ceratopsia indet. (type locality: 64628) Leptoceratops gracilis (64353)
Late/Upper Maastrichtian72.2 - 66.0USA (Wyoming) Leptoceratops gracilis (34747)