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Pianaspis
Taxonomy
Pianaspis was named by Saito and Sakakura (1936) [Sepkoski's age data: Cm lMid Cm uMid Sepkoski's reference number: 1,459]. It is not extant.
It was assigned to Papyriaspididae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).
It was assigned to Papyriaspididae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1936 | Pianaspis Saito and Sakakura |
| 2002 | Pianaspis Jell and Adrain p. 425 |
| 2002 | Pianaspis 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. †Pianaspis Saito and Sakakura 1936
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†Pianaspis attenuata Lermontova and Chernysheva 1950
†Pianaspis dictyodroma Yang et al. 1993
†Pianaspis insuetus Lu and Zhu 1980
†Pianaspis sinensis Yang 1978
†Pianaspis sors Öpik 1961
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Whittington et al. 1997, Aberhan et al. 2004 | |||||
Age range: base of the Boomerangian to the top of the Mayan or 500.50000 to 499.50000 Ma
Collections (44 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Taijangian - Guzhangian | China (Anhui) | P. insuetus (127474) | |
| Mayan | Russian Federation | P. attenuata (10118) | |
| Wangcunian | China (Sichuan) | P. sinensis, P. dictyodroma (127065) | |
| Wangcunian | China (Henan) | P. sp. 1, P. sp. 2, P. sinensis, P. attenuata (127075) | |
| Wangcunian | China (Hunan) | P. sinensis (49162 49163 49164 49165 49283 49287 49288 49289 49290 49291 128313 128317 128318 128319 128333 128336 128337 128340 128341) | |
| Wangcunian - Guzhangian | China (Zhejiang) | P. sinensis (125535 125541) | |
| Wangcunian - Guzhangian | China (Henan) | P. sp. 3, P. sinensis, P. attenuata (127076) | |
| Wangcunian - Guzhangian | China (Sichuan) | P. sinensis, P. dictyodroma (127066 127067) | |
| Boomerangian | Australia (Queenslandd) | Tosotychia sors (225252) | |
| Boomerangian | New Zealand (Nelson) | P. sors (7897) | |
| Guzhangian | China (Sichuan) | P. dictyodroma (127068) | |
| Guzhangian | China (Hunan) | P. attenuata (49168 49170 128351) P. sinensis (49171 49292 128343 128344 128346 128347 128365) P. sinensis, P. attenuata (49169 128354) | |
| Guzhangian | Antarctica | P. sp. (227789) |