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Petalaxis cantabrica
Taxonomy
Lithostrotionella (Hillia) cantabrica was named by de Groot (1963).
It was recombined as Petalaxis cantabrica by Sando (1983).
It was recombined as Petalaxis cantabrica by Sando (1983).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1963 | Lithostrotionella (Hillia) cantabrica de Groot p. 92 figs. pl. 22, figs. 1-4 |
| 1983 | Petalaxis cantabrica Sando p. 31 |
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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 cantabrica de Groot 1963
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. J. Sando 1983 | Petalaxis with corallite diameter 4 to 8 mm and 19 to 28 major septa that closely approach the columella but seldom reach it and extend into the dissepimentarium, ordinarily being attached to the cor-allite wall. Minor septa well developed. Cora!lite wall strongly dilated and denticulate. Columella a simple commonly thickened axial plate connected to counter or cardinal septum. Dissepimentarium weakly lonsdaleoid, composed of 1 to 3 rows of small inflated dissepiments. Tabulae mostly complete, horizontal, concave, and spaced 0.25 to 1 mm apart. A peripheral zone of clinotabellae may be present. Ratio of tabularium width to corallite diameter about 0.6 to 0.7. Increase peripheral. |
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