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Acrocyathus shimeri
Taxonomy
Lonsdaleia shimeri was named by Crickmay (1955).
It was recombined as Acrocyathus shimeri by Sando (1983).
It was recombined as Acrocyathus shimeri by Sando (1983).
Synonymy list
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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 shimeri Crickmay 1955
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. J. Sando 1983 | Cerioid Acrocyathus? with corallite diameter 7 to 13 mm and 17 to 30 major septa that com-monly extend across the tabularium to the columella and seldom extend into the tabularium. Minor septa or-dinarily well developed. Columella complex, composed of an axial plate, septal lamellae, and the upturned edges of tabulae. Dissepimentarium composed of a single row of inflated dissepiments. Tabulae complete, essentially horizontal, but deflected upward at columella, and spaced about 0. 75 mm apart. Ratio of tabularium width to corallite diameter about 0.4 to 0.5. Increase is peripheral. |