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Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Parasaniwa
Taxonomy
Parasaniwa was named by Gilmore (1928). Its type is Parasaniwa wyomingensis. It is the type genus of Parasaniwidae.
It was assigned to Saniwinae by Hay (1930), McDowell and Bogert (1954); to Varanidae by Gilmore (1928), Hecht (1959); to Parasaniwidae by Estes (1964), Estes and Berberian (1970); to Necrosauridae by Estes (1983), Carroll (1988), Bryant (1989), Gao and Fox (1996); and to Platynota by Conrad (2006), Longrich et al. (2012).
It was assigned to Saniwinae by Hay (1930), McDowell and Bogert (1954); to Varanidae by Gilmore (1928), Hecht (1959); to Parasaniwidae by Estes (1964), Estes and Berberian (1970); to Necrosauridae by Estes (1983), Carroll (1988), Bryant (1989), Gao and Fox (1996); and to Platynota by Conrad (2006), Longrich et al. (2012).
Species
P. cynochoros, P. wyomingensis (syn. P. obtusa) (type species)
Synonymy list
Year | Name and author |
---|---|
1928 | Parasaniwa Gilmore p. 85 |
1930 | Parasaniwa Hay p. 252 |
1954 | Parasaniwa McDowell and Bogert p. 132 |
1959 | Parasaniwa Hecht p. 135 |
1964 | Parasaniwa Estes p. 129 |
1970 | Parasaniwa Estes and Berberian p. 5 |
1983 | Parasaniwa Estes |
1988 | Parasaniwa Carroll |
1989 | Parasaniwa Bryant p. 47 |
1996 | Parasaniwa Gao and Fox p. 76 |
2006 | Parasaniwa Conrad p. 122 |
2012 | Parasaniwa Longrich 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, c = class, subp = subphylum | |||||
References: Hendy et al. 2009, Head 2005, Carroll 1988 |
Age range: base of the Judithian to the top of the Late/Upper Maastrichtian or 83.60000 to 66.00000 Ma
Collections (26 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Early/Lower Campanian | USA (Utah) | P. wyomingensis (14430) | |
Judithian | USA (Texas) | P. wyomingensis (14489) | |
Judithian | Canada (Alberta) | P. n. sp. cf. wyomingensis (14463 14471 116537) | |
Late/Upper Campanian | USA (Utah) | P. cynochoros (181392) | |
Late/Upper Campanian | Mexico (Coahuila) | P. sp., P. wyomingensis (154244) | |
Late/Upper Campanian | Canada (Alberta) | P. n. sp. cf. wyomingensis (47629) | |
Middle Campanian - Late/Upper Campanian | USA (Montana) | P. wyomingensis (14446) | |
Middle Campanian - Late/Upper Campanian | Canada (Alberta) | P. n. sp. cf. wyomingensis (62722) | |
Lancian | Canada (Alberta) | P. wyomingensis (14630) | |
Lancian | USA (Wyoming) | P. wyomingensis (14519 14538 14566 14577) | |
Lancian | Canada (Saskatchewan) | P. wyomingensis (14655) | |
Lancian | USA (Montana) | P. wyomingensis (14535 14568 14582 14639) | |
Lancian | USA (South Dakota) | P. wyomingensis (14537 192251) | |
Late/Upper Maastrichtian | USA (Montana) | P. wyomingensis (13142) | |
Late/Upper Maastrichtian | Canada (Alberta) | P. wyomingensis (14569) | |
Late/Upper Maastrichtian | USA (Wyoming) | P. wyomingensis (14585) P. wyomingensis, P. obtusa (180016) |