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Stummelasma lonense
Taxonomy
Cyathophyllum lonense was named by Stumm (1937).
It was recombined as Bethanyphyllum lonense by Merriam (1974); it was recombined as Moravophyllum lonense by Merriam et al. (1977); it was recombined as Stummelasma lonense by Pedder (2004).
It was recombined as Bethanyphyllum lonense by Merriam (1974); it was recombined as Moravophyllum lonense by Merriam et al. (1977); it was recombined as Stummelasma lonense by Pedder (2004).
Synonymy list
| Year | Name and author |
|---|---|
| 1937 | Cyathophyllum lonense Stumm p. 435 |
| 1974 | Bethanyphyllum lonense Merriam p. 54 figs. Plate 11, figures 1-4; plate 12, figures 3-10 |
| 1977 | Moravophyllum lonense Merriam et al. p. 1463 |
| 2004 | Stummelasma lonense Pedder p. 855 |
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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.
†Stummelasma lonense Stumm 1937
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. W. Merriam 1974 | Bethanyphyllum has thin, commonly
rather wavy septa which may be slightly thickened toward the axis. Tabulae varying from straight, wide, and nearly complete to large and small tabellae. More continuous straight tabulae and larger tabellae bound the bigger longitudinal gaps. The dissepimentarium has several columns of rather small and steeply inclined dissepiments. The fossula is generally unrecognizable in mature growth stages. |