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Fredericksolasma darvasica
Taxonomy
Dielasma darvasicum was named by Tschernyschew (1914).
It was recombined as Fredericksolasma darvasica by Smirnova and Grunt (2003), Smirnova (2007).
It was recombined as Fredericksolasma darvasica by Smirnova and Grunt (2003), Smirnova (2007).
Entered
by M. Clapham on 2009-04-10
Synonymy list
| Year | Name and author |
|---|---|
| 1914 | Dielasma darvasicum Tschernyschew p. 43 figs. Pl 2, figs 4-7 |
| 1974 | Dielasma darvasicum Termier et al. p. 141 figs. Pl 34, figs 1,2 |
| 2003 | Fredericksolasma darvasica Smirnova and Grunt p. 140 fig. 1o,1r,4 |
| 2007 | Fredericksolasma darvasica Smirnova p. 807 figs. Pl 5, fig 14; text-fig 79 |
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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.
†Fredericksolasma darvasica Tschernyschew 1914
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 7.92 | 3.50 | 12.5 | 9.15 | 3.68 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Kungurian to the top of the Capitanian or 283.30000 to 259.51000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kungurian | Tajikistan | Fredericksolasma darvasica (42911) | |
| Roadian | Afghanistan | Dielasma darvasicum (88402) | |
| Capitanian | Pakistan | Dielasma darvasicum (127032) |