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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Rozanovicystis
Taxonomy
Rozanovicystis was named by Rozhnov (2006). Its type is Rozanovicystis triangularis.
It was assigned to Rozanovicystidae by Rozhnov (2006).
It was assigned to Rozanovicystidae by Rozhnov (2006).
Species
R. triangularis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2006 | Rozanovicystis Rozhnov pp. 271 - 272 |
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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
| Reference | Diagnosis | |
|---|---|---|
| S. V. Rozhnov 2006 | Theca triangular in outline with strongly convex lower side and low upper surface. Eight marginal plates with well expressed wide collar along entire theca border towering ridgelike part of marginal plates. Ambulacra located between collar and ridge and stretch along entire length of marginals. Stele reduced to single plate within theca, or very short. |
Measurements
No measurements are available
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| Source: o = order, p = phylum | |||||
| References: Aberhan 1992, Raman et al. 2015 | |||||
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Amgan - Mayan | Russian Federation (Sakha) | R. triangularis (198908) |