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Prototreta
Taxonomy
Prototreta was named by Bell (1941) [Sepkoski's age data: Cm Boto Cm uMid Sepkoski's reference number: 4,580].
It was assigned to Acrotretidae by Williams et al. (2000); and to Acrotretida by Bengtson (1992) and Sepkoski (2002).
It was assigned to Acrotretidae by Williams et al. (2000); and to Acrotretida by Bengtson (1992) and Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
Year | Name and author |
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1941 | Prototreta Bell |
1992 | Prototreta Bengtson p. 1030 |
2000 | Prototreta Williams et al. p. 118 |
2002 | Prototreta Sepkoski |
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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.
G. †Prototreta Bell 1941
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†Prototreta gribovensis Popov 1985
†Prototreta millsi Brock and Percival 2006
†Prototreta venusta Koneva 1990
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: g = genus, o = order, c = class, uc = unranked clade | |||||
References: Hendy 2009, Nesnidal et al. 2013, Aberhan et al. 2004 |
Collections (34 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Nangaoian | China (Henan) | P. sp. (127086) | |
Delamaran | Mexico (Sonora) | P. sp. (90558) | |
Amgan | Kazakhstan | P. venusta (9970 9972 9973 9974 9975 9976 9977) | |
Solvan | Kazakhstan | P. dolosa (56536) | |
Wuliuan | Mexico (Sonora) | P. sp. (234898) | |
Middle Cambrian | USA (Montana) | P. subcircularis (155737) P. subcircularis, P. trapeza (155652) P. trapeza (155653) | |
Middle Cambrian | USA (Utah) | P. sp. (86727) | |
Middle Cambrian | Canada (British Columbia) | P. interrupta (171309) | |
St Davids | Argentina (Mendoza) | P. mimica (55944) | |
St Davids | USA (Montana) | P. flabellata (212) | |
Templetonian | Australia (Northern Territory) | P. millsi (232933 232934 232935 232936) | |
Tuesaian | Kazakhstan | P. venusta (9969) | |
Drumian | USA (Utah) | P. attenuata (230679) | |
Floran - Undillan | Antarctica | P. sp. (69505) | |
Menevian | USA (Utah) | P. sp. (230681) | |
Marjumian | Greenland (Peary Land) | P. sp. (49453 49483) | |
Marjumian | USA (Utah) | P. attenuata (230682) P. sp. (262) | |
Boomerangian | Mexico | P. sp. (200299) | |
Guzhangian | Russian Federation (Novaya Zemlya) | P. gribovensis (223090) | |
Merioneth | USA (Nevada) | P. sp. (208) | |
Merioneth | USA (Wyoming) | P. sp. (219) |