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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Billingsaria parvituba
Taxonomy
Columnaria parvituba was named by Troedsson (1928).
It was recombined as Billingsaria parvituba by Pandolfi (1985).
It was recombined as Billingsaria parvituba by Pandolfi (1985).
Synonymy list
| Year | Name and author |
|---|---|
| 1928 | Columnaria parvituba Troedsson p. 114 figs. Pl. 28, fig. 6; Pl. 29, fig. 4 |
| 1985 | Billingsaria parvituba Pandolfi pp. 20 - 21 figs. Pl. 4, figs. 1, 2 |
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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.
†Billingsaria parvituba Troedsson 1928
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. M. Pandolfi 1985 | Coralla are cerioid with four-, five- and six-sided corallites. Mean tabularia diameter is 1 .3 mm. Walls are from 0.2-0.3 mm thick. Septa are long, extending nearly to the center in well preserved forms where they may meet to form an axial columnella. Many septa have bulbous tips. |
Measurements
No measurements are available
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| Source: subc = subclass, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Edenian to the top of the Maysvillian or 451.00000 to 449.60000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wildernessian | Canada (Northwest Territories) | Billingsaria parvituba (26950) | |
| Edenian - Maysvillian | Canada (Northwest Territories) | Billingsaria parvituba (26943) |