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Plasiacystis
Taxonomy
Plasiacystis was named by Prokop and Petr (2004). Its type is Plasiacystis mobilis. It is the type genus of Plasiacystidae.
It was assigned to Plasiacystidae by Prokop and Petr (2004), Noailles et al. (2014); and to Minervaecystidae by Dupichaud et al. (2023).
It was assigned to Plasiacystidae by Prokop and Petr (2004), Noailles et al. (2014); and to Minervaecystidae by Dupichaud et al. (2023).
Species
P. mobilis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2004 | Plasiacystis Prokop and Petr p. 152 |
| 2014 | Plasiacystis Noailles et al. p. 460 |
| 2023 | Plasiacystis Dupichaud 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.
G. †Plasiacystis Prokop and Petr 2004
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†Plasiacystis mobilis Prokop and Petr 2004
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. J. Prokop and V. Petr 2004 | Solutans (?) with the skeleton distinctly composed of the large sac-like theca without rigid arms and the relatively long, flexible cylindrical proxistele composed of imbricating scale-like platelets arranged in numerous horizontal rings. Proxistele is followed with flat, elipsoidal “paddle” composed of two columns of transverse plates (dististele). |
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| References: Aberhan 1992, Bambach et al. 2007 | |||||
Age range: base of the Tremadocian to the top of the Sarka or 486.85000 to 463.30000 Ma
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tremadocian | Morocco | P. mobilis (235489) | |
| Tremadocian | Morocco (Anti-Atlas) | P. mobilis (166727) | |
| Floian | Morocco | P. mobilis (235492 235493) P. sp. (235490) | |
| Floian | Morocco (Anti Atlas) | P. mobilis (166734) | |
| Sarka | Czechia (Praha) | P. mobilis (174033) | |
| Sarka | Czechia (Plzeňský) | P. mobilis (95016) | |
| Sarka | Czechia | P. mobilis (95017 174032) | |
| Darriwilian | Czechia (Praha) | P. mobilis (174034) | |
| Oretanian | Spain (Sevilla) | P. mobilis (174035) |