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Petalaxis bailliei
Taxonomy
Lithostrotionella bailliei was named by Nelson (1960).
It was recombined as Petalaxis bailliei by Sando (1983).
It was recombined as Petalaxis bailliei by Sando (1983).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1960 | Lithostrotionella bailliei Nelson p. 114 figs. pl. 21, figs. 7, 8 |
| 1983 | Petalaxis bailliei Sando p. 27 |
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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 bailliei Nelson 1960
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. J. Sando 1983 | Petalaxis with corallites 5 to 6 mm in diameter and 17 to 18 major septa that ordinarily extend to the columella but seldom extend into the dissepimen-tarium. Minor septa ordinarily well developed. Col-umella a simple thickened axial rod or plate formed by extension of the counter septum. Dissepimentarium composed of a single row of large inflated dissepiments. Tabulae ordinarily complete, essentially horizontal, and irregularly spaced 3 in 1 mm. Ratio of tabularium width to corallite diameter about 0.5. Mode of increase unknown. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: Meramecian or 342.90000 to 335.40000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Meramecian | Canada (Alberta) | Lithostrotionella bailliei (62569) |