PBDB Taxon

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

Probactrosaurus

Reptilia

Taxonomy

Probactrosaurus was named by Rozhdestvensky (1966).

It was assigned to Prohadrosaurinae by Dong (1992); to Iguanodontidae by Taquet (1975), Rozhdestvensky (1977), Brett-Surman (1979), Bartholomai and Molnar (1981), Weishampel and Weishampel (1983), Milner and Norman (1984), Cooper (1985), Carroll (1988), Dong (1997) and Lü (1997); to Styracosterna by Sereno (1986), Benton (1990), Sereno (1997), Sereno (1998) and Sereno (1999); to Iguanodontia by Norman (1989) and Kobayashi and Azuma (2003); to Hadrosauriformes by You et al. (2005); to Iguanodontoidea by Norman (1984), Norman (2002), Norman (2004), Paul (2008) and Amiot et al. (2010); to Hadrosauroidea by Casanovas et al. (1999), You et al. (2003), You et al. (2003), Godefroit et al. (2004), Prieto-Márquez et al. (2006), Godefroit et al. (2008), McDonald et al. (2010), McDonald et al. (2010), Prieto-Marquez and Salinas (2010), Prieto-Márquez and Wagner (2010) and Ramírez-Velasco et al. (2012); to Neoiguanodontia by Norman (2014); to Hadrosauroidea by Prieto-Márquez (2010), Prieto-Márquez (2010), Wang et al. (2011), McDonald (2012), Tan et al. (2015) and Cruzado-Caballero and Powell (2017); and to Hadrosauromorpha by Verdú et al. (2021).

Species

P. gobiensis (syn. P. alashanicus)

Synonymy list

Year	Name and author
1966	Probactrosaurus Rozhdestvensky p. 104
1975	Probactrosaurus Taquet p. 507
1977	Probactrosaurus Rozhdestvensky p. 113
1979	Probactrosaurus Brett-Surman p. 562
1981	Probactrosaurus Bartholomai and Molnar p. 343
1983	Probactrosaurus Weishampel and Weishampel p. 44
1984	Probactrosaurus Milner and Norman p. 146
1984	Probactrosaurus Norman p. 344
1985	Probactrosaurus Cooper p. 314
1986	Probactrosaurus Sereno
1988	Probactrosaurus Carroll
1989	Probactrosaurus Norman p. 61 fig. 1
1990	Probactrosaurus Benton p. 19
1992	Probactrosaurus Dong p. 165
1997	Probactrosaurus Dong p. 122
1997	Probactrosaurus Lü p. 27
1997	Probactrosaurus Sereno p. 440 fig. 2
1998	Probactrosaurus Sereno p. 67 fig. 5
1999	Probactrosaurus Casanovas et al. pp. 351-352 fig. 3
1999	Probactrosaurus Sereno p. 2138 fig. 2
2002	Probactrosaurus Norman p. 116
2003	Probactrosaurus Kobayashi and Azuma p. 172
2003	Probactrosaurus You et al. p. 152 fig. 3
2003	Probactrosaurus You et al. p. 351 fig. 3
2004	Probactrosaurus Godefroit et al. p. 149
2004	Probactrosaurus Norman p. 417
2005	Probactrosaurus You et al. p. 789 fig. 4
2006	Probactrosaurus Prieto-Márquez et al. p. 938
2008	Probactrosaurus Godefroit et al. p. 68
2008	Probactrosaurus Paul p. 201
2010	Probactrosaurus Amiot et al. p. 354
2010	Probactrosaurus McDonald et al. p. 33 fig. 39
2010	Probactrosaurus McDonald et al. p. 808 fig. 10
2010	Probactrosaurus Prieto-Marquez and Salinas p. 835 fig. 20
2010	Probactrosaurus Prieto-Márquez p. 5 fig. 2
2010	Probactrosaurus Prieto-Márquez and Wagner p. 1243 fig. 3
2011	Probactrosaurus Wang et al. p. 155 fig. 11
2012	Probactrosaurus McDonald p. 2
2012	Probactrosaurus Ramírez-Velasco et al. p. 392
2014	Probactrosaurus Norman p. 37 fig. 2.30
2015	Probactrosaurus Tan et al. p. 252
2017	Probactrosaurus Cruzado-Caballero and Powell p. 12 fig. 13
2021	Probactrosaurus Verdú et al. p. 10 fig. 9

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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
—	Diapsida	()

Rank	Name	Author
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Ornithischia	()
—	Genasauria
—	Cerapoda
—	Ornithopoda	()
—	Clypeodonta
—	Iguanodontia	()
—	Dryomorpha
—	Styracosterna
—	Hadrosauriformes
—	Hadrosauroidea	()
genus	Probactrosaurus

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. †Probactrosaurus Rozhdestvensky 1966

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†Probactrosaurus gobiensis Rozhdestvensky 1966

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Invalid names: Probactrosaurus alashanicus Rozhdestvensky 1966 [synonym]

Diagnosis

Reference	Diagnosis
G. S. Paul 2008	As for the type and only determinate species.

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 Barremian to the top of the Albian or 129.40000 to 100.50000 Ma

Collections (2 total)

Time interval	Ma	Country or state	Original ID and collection number
Barremian - Albian	129.4 - 100.5	China (Nei Monggol)	P. alashanicus (53835) P. gobiensis (53836)