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Arctosaurus
Taxonomy
Arctosaurus was named by Adams (1875). Its type is Arctosaurus osborni.
It was considered a nomen vanum by Welles (1984); it was considered a nomen dubium by Nesbitt et al. (2007).
It was assigned to Sauria by Adams (1875); to Anchisauridae by Nopcsa (1901); to Cryptodira by Huene (1902); to Anchisauridae by Lydekker (1889), Zittel (1890), Marsh (1895), Marsh (1896), Hay (1902), Lambe (1905), Hay (1930); to Thecodontosauridae by Romer (1966); to Theropoda by Steel (1970), Galton and Cluver (1976); to Saurischia by Anderson and Cruickshank (1978); and to Archosauromorpha by Sues (2016).
It was considered a nomen vanum by Welles (1984); it was considered a nomen dubium by Nesbitt et al. (2007).
It was assigned to Sauria by Adams (1875); to Anchisauridae by Nopcsa (1901); to Cryptodira by Huene (1902); to Anchisauridae by Lydekker (1889), Zittel (1890), Marsh (1895), Marsh (1896), Hay (1902), Lambe (1905), Hay (1930); to Thecodontosauridae by Romer (1966); to Theropoda by Steel (1970), Galton and Cluver (1976); to Saurischia by Anderson and Cruickshank (1978); and to Archosauromorpha by Sues (2016).
Species
A. osborni (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1875 | Arctosaurus Adams p. 179 fig. 1 |
| 1889 | Arctosaurus Lydekker p. 353 |
| 1890 | Arctosaurus Zittel p. 731 |
| 1895 | Arctosaurus Marsh |
| 1896 | Arctosaurus Marsh p. 239 |
| 1901 | Arctosaurus Nopcsa p. 196 |
| 1902 | Arctosaurus Hay p. 492 |
| 1902 | Arctosaurus Huene |
| 1905 | Arctosaurus Lambe p. 48 |
| 1930 | Arctosaurus Hay p. 172 |
| 1966 | Arctosaurus Romer p. 370 |
| 1970 | Arctosaurus Steel p. 44 |
| 1976 | Arctosaurus Galton and Cluver p. 150 |
| 1978 | Arctosaurus Anderson and Cruickshank p. 31 |
| 2016 | Arctosaurus Sues |
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Kiessling 2004, Hendy et al. 2009 | |||||
Age range: Late/Upper Triassic or 237.00000 to 201.40000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Triassic | Canada (Nunavut) | A. osborni (38500) |