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Therizinosaurus
Taxonomy
Therizinosaurus was named by Maleev (1954) [Sepkoski's age data: K u]. Its type is Therizinosaurus cheloniformis. It is the type genus of Therizinosauridae, Therizinosauroidea. It was considered monophyletic by Currie (2000).
It was assigned to Deinocheiridae by Bonaparte (1978); to Segnosauridae by Currie (1992); to Therizinosauroidea by Barsbold (1997); to Therizinosauria by Russell (1997); to Chelonia by Sepkoski (2002); and to Therizinosauridae by Maleev (1954), Barsbold (1976), Rozhdestvensky (1977), Barsbold (1983), Carroll (1988), Russell and Dong (1994), Clark et al. (1995), Ryan and Vickaryous (1997), Currie (2000), Zhang et al. (2001), Xu et al. (2002), Rauhut (2003), Clark et al. (2004), Zanno (2004), Zanno (2006), Li et al. (2007), Zanno (2010), Senter et al. (2012), Pu et al. (2013).
It was assigned to Deinocheiridae by Bonaparte (1978); to Segnosauridae by Currie (1992); to Therizinosauroidea by Barsbold (1997); to Therizinosauria by Russell (1997); to Chelonia by Sepkoski (2002); and to Therizinosauridae by Maleev (1954), Barsbold (1976), Rozhdestvensky (1977), Barsbold (1983), Carroll (1988), Russell and Dong (1994), Clark et al. (1995), Ryan and Vickaryous (1997), Currie (2000), Zhang et al. (2001), Xu et al. (2002), Rauhut (2003), Clark et al. (2004), Zanno (2004), Zanno (2006), Li et al. (2007), Zanno (2010), Senter et al. (2012), Pu et al. (2013).
Species
T. cheloniformis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1954 | Therizinosaurus Maleev p. 108 |
| 1976 | Therizinosaurus Barsbold pp. 76-78 |
| 1977 | Therizinosaurus Rozhdestvensky p. 112 |
| 1978 | Therezinosaurus Bonaparte p. 466 |
| 1983 | Therizinosaurus Barsbold p. 102 |
| 1988 | Therizinosaurus Carroll |
| 1992 | Therizinosaurus Currie p. 243 |
| 1994 | Therizinosaurus Russell and Dong pp. 2119-2120 |
| 1995 | Therizinosaurus Clark et al. p. 24A |
| 1997 | Therizinosaurus Barsbold p. 448 |
| 1997 | Therizinosaurus Russell p. 729 |
| 1997 | Therizinosaurus Ryan and Vickaryous p. 171 |
| 2000 | Therizinosaurus Currie pp. 439-440 |
| 2001 | Therizinosaurus Zhang et al. p. 284 |
| 2002 | Therezinosaurus Sepkoski |
| 2002 | Therizinosaurus Xu et al. p. 230 |
| 2003 | Therizinosaurus Rauhut p. 41 |
| 2004 | Therizinosaurus Clark et al. p. 152 |
| 2004 | Therizinosaurus Zanno p. 134A |
| 2006 | Therizinosaurus Zanno p. 648 |
| 2007 | Therizinosaurus Li et al. p. 545 |
| 2010 | Therizinosaurus Zanno p. 524 |
| 2012 | Therizinosaurus Senter et al. p. 11 fig. 7 |
| 2013 | Therizinosaurus Pu et al. |
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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: superf = superfamily, o = order | |||||
| References: Marsh 1875, Holtz et al. 2000 | |||||
Age range: Maastrichtian or 72.20000 to 66.00000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Maastrichtian | Mongolia (Omnogov) | T. cheloniformis (88554 179625) |