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Nanosaurus

Reptilia

Taxonomy
Nanosaurus was named by Marsh (1877). It is the type genus of Nanosauridae.

It was considered a nomen dubium by Sues and Norman (1990); it was considered a nomen dubium by Norman et al. (2004).

It was assigned to Dinosauria by Marsh (1877); to Ornithoscelida by Williston (1878); to Ornithopoda by Quenstedt (1882); to Iguanodontidae by Dollo (1882), Dollo (1884); to Camptonotidae by Marsh (1881), Sauvage (1882), Marsh (1882), Marsh (1884); to Camptosauridae by Marsh (1885); to Nanosauridae by Nopcsa (1901); to Kalodontidae by Nopcsa (1902); to Ornithopoda by Marsh (1894), Huene and Lull (1908), Huene (1908); to Hypsilophontidae by von Zittel (1911); to Orthopoda by Joleaud (1922); to Laosauridae by Huene (1914), Osborn (1923); to Nannosaurinae by Nopcsa (1928); to Nanosaurinae by Kuhn (1966); to Fabrosauridae by Galton (1977), Galton (1978), Milner and Norman (1984), Norman (1984); to Nanosauridae by Marsh (1878), Zittel (1890), Marsh (1895), Marsh (1896), Van Den Broeck (1900), Hay (1902), Huene (1909), Hay (1930), Cooper (1985); to Hypsilophodontidae by Lull (1924), Romer (1956), Kuhn (1964), Romer (1966), Charig (1967), Thulborn (1971), Galton (1972), Thulborn (1974), Thulborn (1975), Madsen and Miller (1979), Weishampel and Weishampel (1983), Galton (1983), Russell (1984), Carroll (1988); to Ornithischia by Huene (1914), Santa Luca (1984), Sereno (1991); to Euornithopoda by Galton (2007); to Neornithischia by Carpenter and Galton (2018), Herne et al. (2019); and to Ornithopoda by Dieudonné et al. (2020).

Synonyms
Synonymy list
YearName and author
1877Nanosaurus Marsh
1878Nanosaurus Marsh p. 244
1878Nanosaurus Williston p. 45
1881Nanosaurus Marsh
1882Nanosaurus Dollo
1882Nanosaurus Marsh
1882Nanosaurus Quenstedt p. 188
1882Nanosaurus Sauvage p. 35
1884Nanosaurus Dollo p. 298
1884Nanosaurus Marsh p. 68
1885Nanosaurus Marsh p. 764
1890Nanosaurus Zittel p. 766
1894Nanosaurus Marsh
1895Nanosaurus Marsh
1896Nanosaurus Marsh p. 244
1900Nanosaurus Van Den Broeck p. 87
1901Nanosaurus Nopcsa p. 209
1902Nanosaurus Hay p. 505
1902Nanosaurus Nopcsa p. 152
1908Nanosaurus Huene p. 307
1908Nanosaurus Huene and Lull p. 143
1909Nanosaurus Huene p. 16
1911Nanosaurus von Zittel p. 289
1914Nanosaurus Huene p. 16
1922Nannosaurus Joleaud p. 62
1923Nanosaurus Osborn
1924Nanosaurus Lull p. 238
1928Nannosaurus Nopcsa p. 184
1930Nanosaurus Hay p. 203
1956Nanosaurus Romer p. 628
1964Nanosaurus Kuhn p. 7
1966Nanosaurus Kuhn p. 102
1966Nannosaurus Romer p. 370
1967Nanosaurus Charig p. 716
1971Nanosaurus Thulborn p. 77
1972Nanosaurus Galton p. 465
1974Nanosaurus Thulborn p. 171
1975Nanosaurus Thulborn p. 123
1977Nanosaurus Galton p. 230
1978Nanosaurus Galton p. 156
1979Nanosaurus Madsen and Miller p. 5
1983Nanosaurus Galton p. 232
1983Nanosaurus Weishampel and Weishampel p. 44
1984Nanosaurus Milner and Norman p. 146
1984Nanosaurus Norman pp. 342-344 fig. 7
1984Nanosaurus Russell p. 23
1984Nanosaurus Santa Luca p. 174
1985Nanosaurus Cooper p. 285
1988Nanosaurus Carroll
1990Drinker Bakker et al. p. 9
1991Nanosaurus Sereno p. 174
1997Drinker Sues p. 357
2004Drinker Norman et al. p. 394
2006Drinker Chure et al. p. 237
2007Othnielosaurus Butler et al. p. 2044
2007Othnielosaurus Galton p. 28 figs. 2.8-2.10
2007Drinker Galton p. 34
2007Nanosaurus Galton p. 34
2009Othnielosaurus Galton p. 214
2012Othnielosaurus Han et al. p. 1391 fig. 14
2018Nanosaurus Carpenter and Galton p. 270
2018Othnielosaurus Madzia et al. p. 973 fig. 4
2019Nanosaurus Herne et al. p. 573
2020Nanosaurus Dieudonné et al.

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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
RankNameAuthor
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—Cerapoda
—Ornithopoda()
genusNanosaurus

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. †Nanosaurus Marsh 1877
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†Nanosaurus agilis Marsh 1877
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Invalid names: Drinker nisti Bakker et al. 1990 [synonym], Nanosaurus rex Marsh 1877 [synonym], Othnielosaurus consors Marsh 1894 [synonym]
Invalid names: Drinker Bakker et al. 1990 [synonym], Othnielosaurus Galton 2007 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: hydroxyapatiteo
Entire body: yeso
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: terrestrialo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: herbivoresubo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2009-01-03 20:40:05
Modified: 2009-01-03 22:40:05
Source: subo = suborder, o = order
References: Benton 1983, Marsh 1875

Age range: base of the Kimmeridgian to the top of the Early/Lower Tithonian or 154.80000 to 145.06000 Ma

Collections (23 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Oxfordian - Early/Lower Kimmeridgian157.9 - 152.21USA (Wyoming) Othnielosaurus consors (126540)
Kimmeridgian154.8 - 149.2USA (Wyoming) Dryosaurus sp., Othnielia sp. (46465) Othnielosaurus sp. (185607)
Kimmeridgian - Tithonian154.8 - 143.1USA (Colorado) Othnielosaurus consors (11611)
Kimmeridgian - Tithonian154.8 - 143.1USA (Wyoming) Drinker nisti (55486 192746 230770 231545 231574) Laosaurus gracilis, Laosaurus consors, Drinker nisti, Othnielia rex, N. agilis (12816) Ornithischia indet., Dryosaurus sp., Othnielia sp., Allosaurus sp. (49636) Ornithopoda indet. (56165) Othnielia sp. (39337)
Kimmeridgian - Tithonian154.8 - 143.1USA (Utah) N. rex (47196)
Late/Upper Kimmeridgian - Early/Lower Tithonian152.21 - 145.06USA (Colorado) N. rex, Laosaurus gracilis (28366)
Late/Upper Kimmeridgian - Tithonian152.21 - 143.1USA (Wyoming) Ornithopoda indet. (74663)
Early/Lower Tithonian149.2 - 145.06USA (Wyoming) Drinker sp. (56654)
Tithonian149.2 - 143.1USA (Colorado) N. agilis (48168) Othnielia rex (48166)
Tithonian149.2 - 143.1USA (Wyoming) Drinker nisti (49629 177492) Drinker sp. (55482) Laosaurus consors (39346)