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Siphogrammysia kasanensis
Taxonomy
Pholadomya kasanensis was named by Geinitz (1880). It is the type species of Siphogrammysia.
It was recombined as Goniomya kasanensis by Astre (1934); it was recombined as Palaeocosmomya kazanensis by Muromtseva and Guskov (1984); it was recombined as Siphogrammysia kasanensis by Morris et al. (1991).
It was recombined as Goniomya kasanensis by Astre (1934); it was recombined as Palaeocosmomya kazanensis by Muromtseva and Guskov (1984); it was recombined as Siphogrammysia kasanensis by Morris et al. (1991).
Synonymy list
| Year | Name and author |
|---|---|
| 1880 | Pholadomya kasanensis Geinitz pp. 38-39 figs. pl. 6, figs 23, 23a |
| 1934 | Goniomya kasanensis Astre p. 82 figs. Pl 10, figs 12,14 |
| 1984 | Palaeocosmomya kazanensis Muromtseva and Guskov p. 110 figs. Pl 40, fig 3 |
| 1991 | Siphogrammysia kasanensis Morris et al. p. 70 fig. 18 |
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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.
†Siphogrammysia kasanensis Geinitz 1880
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| valve height | 1 | 24.0 |
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| Source: c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range: base of the Wordian to the top of the Wuchiapingian or 266.90000 to 254.14000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wordian | Russian Federation | Palaeocosmomya kazanensis (88435) | |
| Wordian | Malaysia | Siphogrammysia kasanensis (113861 113862) | |
| Wuchiapingian | India | Goniomya kasanensis (230616) | |
| Wuchiapingian | Madagascar (Diana) | Goniomya kasanensis (81987) |