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Champsosauridae (champsosaur)
Taxonomy
Champsosauridae was named by Cope (1876). Its type is Champsosaurus.
It was assigned to Proganosauria by Zittel (1890); to Proterosauria by Boulenger (1893); to Rhynchocephalia by Hay (1902); to Champsosauriformes by Hay (1930); to Eosuchia by Estes and Berberian (1970); to Diapsida by Benton (1985); to Choristodera by Kuhn (1946) and Erickson (1987); to Choristodera by Estes (1964), Kuhn (1966), Erickson (1972), Carroll (1988), Evans (1990), Evans (1991), Cvancara and Hoganson (1993), Gao and Fox (1998) and Peng et al. (2001); and to Neochoristodera by Gao and Fox (2005) and Gao and Li (2007).
It was assigned to Proganosauria by Zittel (1890); to Proterosauria by Boulenger (1893); to Rhynchocephalia by Hay (1902); to Champsosauriformes by Hay (1930); to Eosuchia by Estes and Berberian (1970); to Diapsida by Benton (1985); to Choristodera by Kuhn (1946) and Erickson (1987); to Choristodera by Estes (1964), Kuhn (1966), Erickson (1972), Carroll (1988), Evans (1990), Evans (1991), Cvancara and Hoganson (1993), Gao and Fox (1998) and Peng et al. (2001); and to Neochoristodera by Gao and Fox (2005) and Gao and Li (2007).
Subtaxa
Synonymy list
Year | Name and author |
---|---|
1876 | Champsosauridae Cope |
1890 | Champsosauridae Zittel p. 599 |
1893 | Champsosauridae Boulenger p. 209 |
1902 | Champsosauridae Hay p. 460 |
1930 | Champsosauridae Hay p. 132 |
1946 | Champsosauridae Kuhn p. 62 |
1964 | Champsosauridae Estes p. 99 |
1966 | Champsosauridae Kuhn p. 36 |
1970 | Champsosauridae Estes and Berberian p. 4 |
1972 | Champsosauridae Erickson p. 8 |
1985 | Champsosauridae Benton p. 153 |
1987 | Champsosauridae Erickson p. 237 |
1988 | Champsosauridae Carroll |
1990 | Champsosauridae Evans |
1991 | Champsosauridae Evans |
1993 | Champsosauridae Cvancara and Hoganson p. 15 |
1998 | Champsosauridae Gao and Fox p. 314 |
2001 | Champsosauridae Peng et al. p. 32 |
2005 | Champsosauridae Gao and Fox p. 439 |
2007 | Champsosauridae Gao and Li p. 270 |
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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.
Fm. †Champsosauridae Cope 1876 [champsosaur]
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
References: Carroll 1988, Katsura 2004, Hendy et al. 2009 |
Age range: base of the Valanginian to the top of the Ti3 or 139.80000 to 56.80000 Ma
Collections (26 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Valanginian - Early/Lower Hauterivian | China (Nei Mongol) | Eotomistoma sp. (46931) | |
Valanginian - Albian | China (Nei Mongol) | Champsosauridae indet. (46907) | |
Aptian | China (Nei Mongol) | Champsosauridae indet. (46881) | |
Middle Albian - Late/Upper Albian | Mongolia (Dornogov) | Champsosauridae indet. (55328) | |
Late/Upper Cretaceous | China (Nei Mongol) | Eotomistoma multidentata (123377) | |
Campanian | USA (Montana) | Champsosauridae indet. (22689) | |
Early/Lower Campanian | Austria (Niederosterreich) | Champsosauridae indet. (48720) | |
Late/Upper Campanian | Canada (Alberta) | Champsosauridae indet. (65904 187581) | |
Middle Campanian - Late/Upper Campanian | Canada (Alberta) | Champsosauridae indet. (167986) | |
Late/Upper Campanian - Maastrichtian | Canada (Alberta) | Champsosauridae indet. (45757 45758) | |
Early/Lower Maastrichtian | Canada (Alberta) | Champsosauridae indet. (220119) | |
Lancian | USA (Montana) | Champsosauridae indet. (14512 14580 14614 14615 14616) | |
Late/Upper Maastrichtian | USA (Wyoming) | Champsosauridae indet. (22638) | |
Late/Upper Maastrichtian | USA (Montana) | Champsosauridae indet. (189003) | |
Pu1 | USA (Montana) | Champsosauridae indet. (14762) | |
Pu2 | Canada (Alberta) | Champsosauridae indet. (220172) | |
Puercan | Canada (Saskatchewan) | Champsosauridae indet. (23503) | |
Torrejonian | USA (Utah) | Champsosauridae indet. (14830) | |
Ti3 | Canada (Alberta) | Champsosauridae indet. (14928) | |
Late/Upper Paleocene | Canada (Alberta) | Champsosauridae indet. (176516) |