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Acrocyathus utkae
Taxonomy
Eolithostrotionella utkae was named by Degtyarev (1973).
It was recombined as Acrocyathus utkae by Sando (1983).
It was recombined as Acrocyathus utkae by Sando (1983).
Synonymy list
| Year | Name and author |
|---|---|
| 1973 | Eolithostrotionella utkae Degtyarev p. 192 figs. pl. 1, figs. 1a, b |
| 1983 | Acrocyathus utkae Sando p. 21 |
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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.
†Acrocyathus utkae Degtyarev 1973
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. J. Sando 1983 | Cerioid Acrocyathus with corallite diameter 1 to 15 mm and 22 to 25 major septa that ap-proach the columella but ordinarily do not reach it and seldom extend into the dissepimentarium. Minor septa absent. Columella composed of a thickened axial plate commonly joined by counter and cardinal septa, septal lamellae, and concentric traces of upturned tabulae in transverse section. Dissepimentarium composed of 1 to 3 rows of large inflated dissepiments. Tabulae complete conical to nearly horizontal, and spaced about 0.5 m~ apart. Ratio of tabularium width to corallite diameter about 0.6. 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