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Segnosaurus
Taxonomy
Segnosaurus was named by Perle (1979). Its type is Segnosaurus galbinensis. It was considered monophyletic by Currie (2000).
It was assigned to Segnosauria by Paul (1984), Benton (1990); to Segnosauridae by Barsbold and Perle (1980), Barsbold (1983), Carroll (1988), Mader and Bradley (1989), Currie (1992), Currie and Eberth (1993), Nessov (1995); to Therizinosauroidea by Barsbold (1997); to Therizinosauria by Russell (1997); and to Therizinosauridae by Russell and Dong (1994), 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 et al. (2009), Zanno (2010), Senter et al. (2012), Pu et al. (2013).
It was assigned to Segnosauria by Paul (1984), Benton (1990); to Segnosauridae by Barsbold and Perle (1980), Barsbold (1983), Carroll (1988), Mader and Bradley (1989), Currie (1992), Currie and Eberth (1993), Nessov (1995); to Therizinosauroidea by Barsbold (1997); to Therizinosauria by Russell (1997); and to Therizinosauridae by Russell and Dong (1994), 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 et al. (2009), Zanno (2010), Senter et al. (2012), Pu et al. (2013).
Species
S. galbinensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1979 | Segnosaurus Perle p. 45 |
| 1980 | Segnosaurus Barsbold and Perle p. 188 |
| 1983 | Segnosaurus Barsbold p. 104 |
| 1984 | Segnosaurus Paul p. 507 |
| 1988 | Segnosaurus Carroll |
| 1989 | Segnosaurus Mader and Bradley pp. 53-54 |
| 1990 | Segnosaurus Benton p. 24 |
| 1992 | Segnosaurus Currie p. 247 |
| 1993 | Segnosaurus Currie and Eberth p. 138 |
| 1994 | Segnosaurus Russell and Dong pp. 2119-2120 |
| 1995 | Segnosaurus Nessov p. 35 |
| 1997 | Segnosaurus Barsbold p. 448 |
| 1997 | Segnosaurus Russell p. 729 |
| 2000 | Segnosaurus Currie p. 440 |
| 2001 | Segnosaurus Zhang et al. p. 284 |
| 2002 | Segnosaurus Xu et al. p. 230 |
| 2003 | Segnosaurus Rauhut p. 41 |
| 2004 | Segnosaurus Clark et al. p. 152 |
| 2004 | Segnosaurus Zanno p. 134A |
| 2006 | Segnosaurus Zanno p. 648 |
| 2007 | Segnosaurus Li et al. p. 545 |
| 2009 | Segnosaurus Zanno et al. p. S16 fig. S2 |
| 2010 | Segnosaurus Zanno p. 522 |
| 2012 | Segnosaurus Senter et al. p. 11 fig. 7 |
| 2013 | Segnosaurus 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: g = genus, superf = superfamily, o = order | |||||
| References: Holtz et al. 2000, Marsh 1875, Kiessling 2004, Peczkis 1995 | |||||
Age range: base of the Late/Upper Turonian to the top of the Early/Lower Turonian or 93.90000 to 89.80000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Cenomanian - Early/Lower Turonian | Japan (Kumamoto) | Allosaurus sp. (182216 182217) | |
| Cenomanian - Santonian | Mongolia (Omnogov) | S. galbinensis (79724 224602) | |
| Cenomanian - Santonian | Mongolia (Dornogov) | S. galbinensis (118167) | |
| Late/Upper Turonian - Late/Upper Santonian | Mongolia (Omnogov) | S. galbinensis (67974) |