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Petalaxis immanis
Taxonomy
Petalaxis immanis was named by Kozyreva (1974).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1974 | Petalaxis immanis Kozyreva p. 30 figs. pl. 2, figs. 4a-c, 5a, b |
| 1983 | Petalaxis immanis Sando p. 29 |
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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 immanis Kozyreva 1974
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. J. Sando 1983 | Petalaxis with corallite diameter 8 to 18 mm and 17 to 18 major septa that ordinarily approach the columella but do not reach it and seldom extend into the dissepimentarium. Minor septa absent or poorly developed. Columella a simple, strongly thickened axial plate connected to counter septum. Dissepimentarium composed of 2 rows of small inflated dissepiments. Tabulae complete, essentially horizontal, turned up at columella, and irregularly spaced 0.25 to 0.5 mm apart. Ratio of tabularium width to corallite diameter about 0.5 to 0.6. lVIode 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