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Acrocanthosaurus
Taxonomy
Acrocanthosaurus was named by Stovall and Langston (1950).
It was assigned to Antrodemidae by Stovall and Langston (1950); to Tyrannosauridae by Langston (1974); to Megalosauridae by Romer (1956), Skinner and Blome (1975); to Megalosaurinidae by Tatarinov (1964), Swinton (1970), Russell (1984); to Carnosauria by Gauthier (1986); to Allosaurinae by Paul (1988); to Spinosauridae by Walker (1964), Romer (1966), Steel (1970), Taquet (1984), Carroll (1988); to Allosauroidea by Yates (2005), Weishampel (2006); to Allosauridae by Colbert and Russell (1969), Thulborn (1984), Kurzanov (1989), Molnar et al. (1990), Sereno et al. (1994), Holtz (1994), Hutt et al. (1996), Buffetaut et al. (1996), Hutchinson and Padian (1997), Holtz (2000), Currie and Carpenter (2000), Barco and Ruiz-Omeñaca (2001), Allain (2005), Coria and Currie (2006), Suarez et al. (2021); and to Carcharodontosauridae by Sereno et al. (1996), Larsson (1996), Sereno (1997), Harris (1998), Rauhut (2003), Holtz et al. (2004), Smith (2007), Brusatte and Sereno (2007), Brusatte and Sereno (2007), Brusatte et al. (2009), Carrano et al. (2012), D'Emic et al. (2012), Canale et al. (2013), Novas et al. (2013), Hendrickx and Mateus (2014), Sanz et al. (2014), White et al. (2015), Csiki-Sava et al. (2016), Carrano (2024).
It was assigned to Antrodemidae by Stovall and Langston (1950); to Tyrannosauridae by Langston (1974); to Megalosauridae by Romer (1956), Skinner and Blome (1975); to Megalosaurinidae by Tatarinov (1964), Swinton (1970), Russell (1984); to Carnosauria by Gauthier (1986); to Allosaurinae by Paul (1988); to Spinosauridae by Walker (1964), Romer (1966), Steel (1970), Taquet (1984), Carroll (1988); to Allosauroidea by Yates (2005), Weishampel (2006); to Allosauridae by Colbert and Russell (1969), Thulborn (1984), Kurzanov (1989), Molnar et al. (1990), Sereno et al. (1994), Holtz (1994), Hutt et al. (1996), Buffetaut et al. (1996), Hutchinson and Padian (1997), Holtz (2000), Currie and Carpenter (2000), Barco and Ruiz-Omeñaca (2001), Allain (2005), Coria and Currie (2006), Suarez et al. (2021); and to Carcharodontosauridae by Sereno et al. (1996), Larsson (1996), Sereno (1997), Harris (1998), Rauhut (2003), Holtz et al. (2004), Smith (2007), Brusatte and Sereno (2007), Brusatte and Sereno (2007), Brusatte et al. (2009), Carrano et al. (2012), D'Emic et al. (2012), Canale et al. (2013), Novas et al. (2013), Hendrickx and Mateus (2014), Sanz et al. (2014), White et al. (2015), Csiki-Sava et al. (2016), Carrano (2024).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1950 | Acrocanthosaurus Stovall and Langston, Jr. pp. 699-700 |
| 1956 | Acrocanthosaurus Romer p. 615 |
| 1964 | Acrocanthosaurus Tatarinov p. 537 |
| 1964 | Acrocanthosaurus Walker p. 116 |
| 1966 | Acrocanthosaurus Romer p. 369 |
| 1969 | Acrocanthosaurus Colbert and Russell p. 36 |
| 1970 | Acrocanthosaurus Steel p. 38 |
| 1970 | Acrocanthosaurus Swinton p. 143 |
| 1974 | Acrocanthosaurus Langston p. 82 |
| 1975 | Acrocanthosaurus Skinner and Blome p. 6 |
| 1984 | Acrocanthosaurus Russell p. 23 |
| 1984 | Acrocanthosaurus Taquet p. 217 |
| 1984 | Acrocanthosaurus Thulborn p. 133 |
| 1986 | Acrocanthosaurus Gauthier p. 9 |
| 1988 | Acrocanthosaurus Carroll |
| 1988 | Acrocanthosaurus Paul p. 314 |
| 1989 | Acrocanthosaurus Kurzanov p. 4 |
| 1990 | Acrocanthosaurus Molnar et al. p. 189 |
| 1994 | Acrocanthosaurus Holtz |
| 1994 | Acrocanthosaurus Sereno et al. p. 270 |
| 1996 | Acrocanthosaurus Buffetaut et al. p. 691 |
| 1996 | Acrocanthosaurus Hutt et al. p. 642 |
| 1996 | Acrocanthosaurus Larsson p. 47A |
| 1996 | Acrocanthosaurus Sereno et al. p. 989 fig. 4 |
| 1997 | Acrocanthosaurus Hutchinson and Padian p. 96 |
| 1997 | Acrocanthosaurus Sereno p. 457 |
| 1998 | Acrocanthosaurus Harris p. 53 |
| 2000 | Acrocanthosaurus Currie and Carpenter p. 210 |
| 2000 | Acrocanthosaurus Holtz, Jr. p. 13 fig. 5 |
| 2001 | Acrocanthosaurus Barco and Ruiz-Omeñaca p. 243 |
| 2003 | Acrocanthosaurus Rauhut p. 36 |
| 2004 | Acrocanthosaurus Holtz, Jr. et al. p. 75 |
| 2005 | Acrocanthosaurus Allain p. 83 |
| 2005 | Acrocanthosaurus Yates p. 118 fig. 9 |
| 2006 | Acrocanthosaurus Coria and Currie p. 108 fig. 35 |
| 2006 | Acrocanthosaurus Weishampel p. 144 |
| 2007 | Acrocanthosaurus Brusatte and Sereno p. 54A |
| 2007 | Acrocanthosaurus Smith p. 104 |
| 2009 | Acrocanthosaurus Brusatte et al. p. 1055 fig. 3 |
| 2012 | Acrocanthosaurus Carrano et al. p. 248 fig. 7 |
| 2012 | Acrocanthosaurus D'Emic et al. p. 15 |
| 2013 | Acrocanthosaurus Canale et al. |
| 2013 | Acrocanthosaurus Novas et al. p. 188 fig. 12 |
| 2014 | Acrocanthosaurus Hendrickx and Mateus |
| 2014 | Acrocanthosaurus Sanz et al. p. 48 |
| 2015 | Acrocanthosaurus White et al. p. 3 |
| 2016 | Acrocanthosaurus Csiki-Sava et al. p. 230 |
| 2021 | Acrocanthosaurus Suarez et al. |
| 2024 | Acrocanthosaurus Carrano p. 4 |
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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. †Acrocanthosaurus Stovall and Langston, Jr. 1950
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†Acrocanthosaurus atokensis Stovall and Langston, Jr. 1950
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| coracoid height | 1 | 210.0 | - | - | - | - | |
| femur circumference | 2 | 406.1 | 388.0 | 425.0 | 406.5 | 26.2 |
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| Source: g = genus, o = order | |||||
| References: Peczkis 1995, Marsh 1875 | |||||
Age range: base of the Late/Upper Aptian to the top of the Albian or 122.46000 to 100.50000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aptian | USA (Oklahoma) | A. atokensis (25147 25148 25149) | |
| Aptian - Albian | USA (Utah) | A. sp. (60815) | |
| Aptian - Albian | USA (Oklahoma) | A. sp. (223865) | |
| Late/Upper Aptian | USA (Texas) | A. atokensis (51709) | |
| Late/Upper Aptian | USA (Maryland) | A. atokensis, A. sp. (14376) | |
| Late/Upper Aptian - Early/Lower Albian | USA (Oklahoma) | A. atokensis (14392) | |
| Albian | USA (Arkansas) | Theropoda indet. (222851) | |
| Middle Albian - Early/Lower Cenomanian | USA (Wyoming) | A. atokensis (50496) Theropoda indet. (50498) |