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Petalaxis grootae
Taxonomy
Petalaxis grootae was named by Sando (1983). Its type specimen is RGM 112721 and is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1983 | Petalaxis grootae Sando p. 30 |
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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 grootae Sando 1983
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. J. Sando 1983 | Petalaxis with corallite diameter 4 to 6 mm and 14 to 16 major septa that approach the col-umella but seldom reach it and seldom extend into the dissepimentarium. Minor septa well developed. Col-umella a simple axial plate, curved in some corallites, and ordinarily connected to the counter septum. Dissepimentarium composed of 1 to 3 rows of inflated dissepiments of varying sizes. Tabulae complete and in-complete, essentially horizontal, flat, concave or convex, and spaced 0.25 to 0. 75 rrim apart. Ratio of tabularium width to corallite diameter about 0.6 to 0.7. Mode of in-crease 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