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Parksosaurus
Taxonomy
Parksosaurus was named by Sternberg (1937). Its type is Thescelosaurus warreni. It is the type genus of Parksosauridae.
It was synonymized subjectively with Thescelosaurus by Tatarinov (1964).
It was assigned to Hypsilophodontinae by Sternberg (1940); to Dryosauridae by Milner and Norman (1984); to Thescelosauridae by Eberth (1997); to Euornithopoda by Norman et al. (2004); to Neornithischia by Boyd et al. (2009); to Hypsilophodontidae by Romer (1956), Parsch (1963), Kuhn (1964), Romer (1966), Russell and Chamney (1967), Thulborn (1970), Thulborn (1971), Galton (1972), Galton (1973), Thulborn (1974), Galton (1974), Sues (1980), Lehman (1981), Colbert (1981), Weishampel and Weishampel (1983), Norman (1984), Russell (1984), Sereno (1986), Carroll (1988), Sues and Norman (1990), Weishampel and Heinrich (1992), Carpenter (1994), Galton (1995), Sues (1997), Winkler et al. (1997), Eberth et al. (2001), Ryan and Evans (2005) and Alifanov and Saveliev (2014); to Ornithopoda by Butler et al. (2008), Han et al. (2012) and Herne et al. (2019); to Parksosauridae by Buchholz (2002) and Dieudonné et al. (2020); and to Thescelosaurinae by Brown and Druckenmiller (2011), Brown et al. (2013), Madzia et al. (2018) and Sues et al. (2022).
It was synonymized subjectively with Thescelosaurus by Tatarinov (1964).
It was assigned to Hypsilophodontinae by Sternberg (1940); to Dryosauridae by Milner and Norman (1984); to Thescelosauridae by Eberth (1997); to Euornithopoda by Norman et al. (2004); to Neornithischia by Boyd et al. (2009); to Hypsilophodontidae by Romer (1956), Parsch (1963), Kuhn (1964), Romer (1966), Russell and Chamney (1967), Thulborn (1970), Thulborn (1971), Galton (1972), Galton (1973), Thulborn (1974), Galton (1974), Sues (1980), Lehman (1981), Colbert (1981), Weishampel and Weishampel (1983), Norman (1984), Russell (1984), Sereno (1986), Carroll (1988), Sues and Norman (1990), Weishampel and Heinrich (1992), Carpenter (1994), Galton (1995), Sues (1997), Winkler et al. (1997), Eberth et al. (2001), Ryan and Evans (2005) and Alifanov and Saveliev (2014); to Ornithopoda by Butler et al. (2008), Han et al. (2012) and Herne et al. (2019); to Parksosauridae by Buchholz (2002) and Dieudonné et al. (2020); and to Thescelosaurinae by Brown and Druckenmiller (2011), Brown et al. (2013), Madzia et al. (2018) and Sues et al. (2022).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1937 | Parksosaurus Sternberg p. 375 |
| 1940 | Parksosaurus Sternberg p. 493 |
| 1956 | Parksosaurus Romer p. 628 |
| 1963 | Parksosaurus Parsch p. 8 |
| 1964 | Parksosaurus Kuhn p. 8 |
| 1966 | Parksosaurus Romer p. 370 |
| 1967 | Parksosaurus Russell and Chamney p. 12 |
| 1970 | Parksosaurus Thulborn p. 428 fig. 9 |
| 1971 | Parksosaurus Thulborn p. 77 |
| 1972 | Parksosaurus Galton p. 465 |
| 1973 | Parksosaurus Galton p. 17 |
| 1974 | Parksosaurus Galton p. 1064 |
| 1974 | Parksosaurus Thulborn p. 171 |
| 1980 | Parksosaurus Sues p. 70 |
| 1981 | Parksosaurus Colbert p. 50 |
| 1981 | Parksosaurus Lehman p. 203 |
| 1983 | Parksosaurus Weishampel and Weishampel p. 44 |
| 1984 | Parksosaurus Milner and Norman p. 146 |
| 1984 | Parksosaurus Norman pp. 342-344 fig. 7 |
| 1984 | Parksosaurus Russell p. 26 |
| 1986 | Parksosaurus Sereno |
| 1988 | Parksosaurus Carroll |
| 1990 | Parksosaurus Sues and Norman p. 500 |
| 1992 | Parksosaurus Weishampel and Heinrich p. 163 |
| 1994 | Parksosaurus Carpenter p. 290 |
| 1995 | Parksosaurus Galton pp. 307-308 |
| 1997 | Parksosaurus Eberth p. 202 |
| 1997 | Parksosaurus Sues p. 357 |
| 1997 | Parksosaurus Winkler et al. p. 345 fig. 19 |
| 2001 | Parksosaurus Eberth et al. p. 66 |
| 2002 | Parksosaurus Buchholz p. 22 |
| 2004 | Parksosaurus Norman et al. p. 395 |
| 2005 | Parksosaurus Ryan and Evans p. 329 |
| 2008 | Parksosaurus Butler et al. p. 21 figs. 2-4 |
| 2009 | Parksosaurus Boyd et al. p. 765 |
| 2011 | Parksosaurus Brown and Druckenmiller p. 1344 |
| 2012 | Parksosaurus Han et al. p. 1391 fig. 14 |
| 2013 | Parksosaurus Brown et al. p. 512 |
| 2014 | Parksosaurus Alifanov and Saveliev p. 419 |
| 2018 | Parksosaurus Madzia et al. p. 973 fig. 4 |
| 2019 | Parksosaurus Herne et al. p. 573 |
| 2020 | Parksosaurus Dieudonné et al. |
| 2022 | Parksosaurus Sues 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
| Reference | Diagnosis | |
|---|---|---|
| C. A. Boyd et al. 2009 | As for type and only known species. |