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Stromatocystites pentangularis
Taxonomy
Stromatocystites pentangularis was named by Pompeckj (1896).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1896 | Stromatocystites pentangularis Pompeckj |
| 1899 | Stromatocystites balticus Jaekel |
| 1945 | Stromatocystites pentangularis Regnéll |
| 2004 | Stromatocystites flexibilis Parsley and Prokop p. 152 figs. pl. 1, figs 8,9 |
| 2015 | Stromatocystites pentangularis Zamora et al. figs. 1(7, 8), 2 |
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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.
†Stromatocystites pentangularis Pompeckj 1896
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Invalid names: Stromatocystites balticus Jaekel 1899 [synonym], Stromatocystites flexibilis Parsley and Prokop 2004 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Parsley and R. J. Prokop 2004 (Stromatocystites flexibilis) | Stromatocystites with loosely articulated theca; ambulacral flooring plates and side plates are thin and do not form a strongly elevated ambulacral area. Theca is sub-circular in outline and relatively flat in cross section. Marginal outer rim plates are only slightly more tightly sutured than the loosely sutured interambulacral plates on the oral and aboral surfaces. Interambulacral plates on both oral and aboral surfaces are smaller and more numerous. Attachment disc is smaller and is loosely articulated. |