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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), 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), Peng et al. (2001); and to Neochoristodera by Gao and Fox (2005), 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), 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), Peng et al. (2001); and to Neochoristodera by Gao and Fox (2005), 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: Hendy et al. 2009, Carroll 1988, Katsura 2004, Kiessling 2004 | |||||
Age range: base of the Valanginian to the top of the Ti3 or 137.05000 to 56.20000 Ma
Collections (29 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) | |
| Early/Lower Campanian | Austria (Niederosterreich) | Champsosauridae indet. (48720) | |
| Late/Upper Campanian | Canada (Alberta) | Champsosauridae indet. (65904 89604 187581 210574) | |
| Late/Upper Campanian | USA (Montana) | Champsosauridae indet. (22689) | |
| 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. (60563 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) |