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Petalaxis flexuosus
Taxonomy
Lithostrotion flexuosum was named by Trautschold (1879).
It was recombined as Petalaxis flexuosus by Sando (1983).
It was recombined as Petalaxis flexuosus by Sando (1983).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1879 | Lithostrotion flexuosum Trautschold p. 37 figs. pl. 5, figs. 7a, b |
| 1983 | Petalaxis flexuosus Sando p. 27 |
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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.
†Petalaxis flexuosus Trautschold 1879
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. J. Sando 1983 | Petalaxis with corallite diameter 5 to 7 mm and 14 to 17 major septa that approach t~e col-umella but seldom reach it and commonly extend into the dissepimentarium. Minor septa well developed. Col-umella a simple thickened axial plate ordinarily con-nected to the counter septum and to the cardinal sep~m in some corallites. Dissepimentarium composed of 1 to 2 rows of generally small inflated dissepiments of varying sizes. Tabulae complete and incomplete, horizontal to in-clined, nat, concave or convex, irregularly spaced 0.25 to 1 mm apart. Ratio of tabularium width to corallite diameter 0.6 to 0.7. Mode of increase unknown. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||
Collections
No collection or age range data are available