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Albertosaurus (Alberta lizard)

Reptilia - Avetheropoda - Tyrannosauridae

Taxonomy
Albertosaurus was named by Osborn (1905). It is the type genus of Albertosaurinae. It was considered monophyletic by Currie (2000).

It was synonymized subjectively with Aublysodon by Romer (1956) and Parsch (1963); it was synonymized subjectively with Deinodon by Tatarinov (1964).

It was assigned to Theropoda by Osborn (1905); to Megalosaurinidae by Huene (1909); to Coeluridae by von Zittel (1911); to Deinodontinae by Matthew and Brown (1922); to Aublysodontinae by Nopcsa (1928); to Theropoda by Parks (1935); to Deinodontidae by Brown (1914), Russell (1930), Stromer (1934) and Gilmore (1946); to Dinodontidae by Huene (1926), Huene (1927) and Colbert (1964); to Coelurosauria by Pérez-Moreno et al. (1994); to Tyrannosaurinae by Paul (1988), Holtz (1997), Currie (2000) and Holtz (2001); to Albertosaurinae by Currie (2003), Currie et al. (2003) and Holtz (2004); and to Tyrannosauridae by Walker (1964), Romer (1966), Russell and Chamney (1967), Steel (1970), Russell (1970), Coulton (1976), Kurzanov (1976), Lawson (1976), Molnar (1978), Baird and Horner (1979), Molnar (1980), Molnar (1980), Barsbold (1983), Dodson (1983), Thulborn (1984), Russell (1984), Breithaupt (1985), Clemens (1986), Gauthier (1986), Carroll (1988), Mader and Bradley (1989), Kurzanov (1989), Molnar et al. (1990), Molnar (1991), Currie (1992), Carpenter (1992), Buffetaut et al. (1996), Carpenter (1997), Padian (1997), Hernández-Rivera (1997), Ryan (1997), Ryan (1997), Eberth (1997), Sereno (1998), Carr (1999), Currie (2000), Currie et al. (2003), Rauhut (2003), Erickson et al. (2004), Carr et al. (2005), Urban and Lamanna (2006), Li et al. (2009), Carr et al. (2011), Brown and Druckenmiller (2011), Paulina Carabajal and Currie (2012), Dalman (2013), Lu et al. (2014) and Carr et al. (2017).

Synonymy list
YearName and author
1905Albertosaurus Osborn p. 265
1909Albertosaurus Huene p. 15
1911Albertosaurus von Zittel p. 281
1914Albertosaurus Brown p. 377
1922Albertosaurus Matthew and Brown p. 378
1926Albertosaurus Huene p. 101
1927Albertosaurus Huene p. 260
1928Albertosaurus Nopcsa p. 183
1930Albertosaurus Russell p. 150
1934Albertosaurus Stromer p. 80
1935Albertosaurus Parks p. 195
1946Albertosaurus Gilmore pp. 16-17
1964Albertosaurus Colbert p. 158
1964Albertosaurus Walker p. 128
1966Albertosaurus Romer p. 369
1967Albertosaurus Russell and Chamney p. 10
1970Albertosaurus Russell p. 4
1970Albertosaurus Steel p. 40
1976Albertosaurus Coulton p. 177
1976Albertosaurus Kurzanov
1976Albertosaurus Lawson p. 160
1978Albertosaurus Molnar p. 75
1979Albertosaurus Baird and Horner p. 6
1980Albertosaurus Molnar p. 102
1983Albertosaurus Barsbold p. 95
1983Albertosaurus Dodson p. 95
1984Albertosaurus Russell p. 25
1984Albertosaurus Thulborn p. 133
1985Albertosaurus Breithaupt p. 165
1986Albertosaurus Clemens p. 79
1986Albertosaurus Gauthier p. 10
1988Albertosaurus Carroll
1988Albertosaurus Paul p. 327
1989Albertosaurus Kurzanov p. 5
1989Albertosaurus Mader and Bradley p. 43
1990Albertosaurus Molnar et al. p. 189
1991Albertosaurus Molnar p. 166
1992Albertosaurus Carpenter p. 257
1992Albertosaurus Currie p. 242
1994Albertosaurus Pérez-Moreno et al. p. 184 fig. 1
1996Albertosaurus Buffetaut et al. p. 690
1997Albertosaurus Carpenter p. 766
1997Albertosaurus Eberth p. 201
1997Albertosaurus Hernández-Rivera p. 434
1997Albertosaurus Holtz, Jr. p. 53A
1997Albertosaurus Padian p. 532
1997Albertosaurus Ryan p. 257
1998Albertosaurus Sereno p. 74 fig. 9
1999Albertosaurus Carr pp. 498-499
2000Albertosaurus Currie p. 271
2001Albertosaurus Holtz, Jr. p. 69 fig. 7.2
2003Albertosaurus Currie p. 663
2003Albertosaurus Currie et al. p. 6
2003Albertosaurus Currie et al. p. 230 fig. 2
2003Albertosaurus Rauhut p. 43
2004Albertosaurus Erickson et al. p. 773
2004Albertosaurus Holtz, Jr. p. 112
2005Albertosaurus Carr et al. p. 140 fig. 21
2006Albertosaurus Urban and Lamanna p. 234
2009Albertosaurus Li et al.
2011Albertosaurus Brown and Druckenmiller p. 1343
2011Albertosaurus Carr et al.
2012Albertosaurus Paulina Carabajal and Currie p. 95
2013Albertosaurus Dalman p. 242
2014Albertosaurus Lu et al.
2017Albertosaurus Carr et al. p. 9s

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
RankNameAuthor
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Theropoda()
Neotheropoda
AverostraPaul 2002
Tetanurae
orderAvetheropoda
suborderCoelurosauria
superfamilyTyrannosauroidea
familyTyrannosauridae
genusAlbertosaurus

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.

Diagnosis
ReferenceDiagnosis
H. F. Osborn 1905Reduced alveolar partitions between the mandibular teeth; . . . principal alveolar grooves apparently formed on the inner surface of the outer dentary wall with little or no development of grooves on the alveolar plate (Lambe, op. cit., p. i6)." The mandibular ramus is devoid of the triangular osseous plates between the teeth. The anterior truncate teeth are reduced to a single small pair.
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: 3000 kgg
Minimum body mass: 1000 kgg
Architecture: compact or denseo
Ontogeny: accretion, modification of partso
Grouping: solitaryo
Environment: terrestrialo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: carnivoresubo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2005-08-24 13:10:38
Modified: 2005-08-24 15:10:38
Source: g = genus, subo = suborder, o = order
References: Kiessling 2004, Benton 1983, Peczkis 1995, Marsh 1875

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

Collections (24 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Santonian - Middle Campanian85.8 - 70.6USA (Alabama) Albertosaurus sp. (54139)
Campanian83.6 - 72.1Canada (Alberta) Albertosaurus libratus (52485)
Campanian83.6 - 72.1USA (Georgia) Theropoda indet. (35289)
Campanian83.6 - 72.1USA (Colorado) Albertosaurus sp. (66908)
Campanian - Maastrichtian83.6 - 66.0USA (Colorado) Albertosaurus sp. (56614)
Late/Upper Campanian83.5 - 70.6USA (New Mexico) Albertosaurus sp. (34826 36269)
Late/Upper Campanian83.5 - 70.6Canada (Alberta) Albertosaurus arctunguis (11900) Albertosaurus sarcophagus (11902) Laelaps incrassatus (11901)
Late/Upper Campanian83.5 - 70.6Mexico (Sonora) Albertosaurus sp. (46163 91376 91377)
Middle Campanian - Late/Upper Campanian83.5 - 70.6Canada (Saskatchewan) Albertosaurus sp. (14494 75030)
Middle Campanian - Late/Upper Campanian83.5 - 70.6USA (Montana) Albertosaurus sp. (14492)
Maastrichtian72.1 - 66.0Canada (Alberta) Laelaps incrassatus (11898)
Maastrichtian72.1 - 66.0USA (Missouri) Albertosaurus sp. (45679)
Early/Lower Maastrichtian70.6 - 66.0Canada (Alberta) Albertosaurus sarcophagus (55363) Albertosaurus sp. (34744 94370) Daspletosaurus torosus (11916) Theropoda indet. (11899)
Lancian70.6 - 66.0USA (Wyoming) Albertosaurus sp. (14557)