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Petalaxis exilis
Taxonomy
Petalaxis exilis was named by Kozyreva (1974).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1974 | Petalaxis exilis Kozyreva p. 26 figs. pl. 1, figs. 1a-d |
| 1983 | Petalaxis exilis Sando pp. 32 - 33 |
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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 exilis Kozyreva 1974
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. J. Sando 1983 | Petalaxis with corallite diameter 5 to 11 mm and 10 to 14 major septa that ordinarily are short and do not extend to the columella or into the dis-sepimentarium. Minor septa absent. Columella a simple thickened axial plate ordinarily connected to the counter septum and to the cardinal septum in some eorallites. Dissepimentarium composed of 1 to 3 rows of mostly large inflated dissepiments. Tabulae complete:, horizontal or slightly elevated toward columella, and irregularly spaced 0.5 to 1.25 mm apart. Ratio of tabularium width to corallite diameter about 0.4. Increase probably 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