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Levenolasma mongolica
Taxonomy
Dielasma millepunctatum mongolicum was named by Grabau (1931). It is a 3D body fossil. Its type locality is Jisu Honguer 1190, Enteletes Bed, which is in a Wordian carbonate limestone in the Zhesi Formation of China.
It was recombined as Dielasma mongolicum by Ruzhentsev and Sarycheva (1965), Li et al. (1986); it was recombined as Levenolasma mongolica by Smirnova (2007).
It was recombined as Dielasma mongolicum by Ruzhentsev and Sarycheva (1965), Li et al. (1986); it was recombined as Levenolasma mongolica by Smirnova (2007).
Synonymy list
| Year | Name and author |
|---|---|
| 1931 | Dielasma millepunctatum mongolicum Grabau p. 57 figs. Pl 4, figs 5a-d |
| 1965 | Dielasma mongolicum Ruzhentsev and Sarycheva |
| 1986 | Dielasma mongolicum Li et al. figs. Pl 8, fig 15 |
| 2007 | Levenolasma mongolica Smirnova p. 810 figs. Pl 5, 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.
†Levenolasma mongolica Grabau 1931
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 8.47 | 7.60 | 10.0 | 8.00 | 1.29 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Age range: base of the Sakmarian to the top of the Capitanian or 293.52000 to 259.51000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Sakmarian | China (Guangxi) | Dielasma mongolicum (134321) | |
| Wordian | China (Nei Mongol) | Dielasma mongolicum (type locality: 109091) Levenolasma mongolica (118363) | |
| Wordian | Armenia | Dielasma mongolicum (113617) | |
| Capitanian | Armenia | Dielasma mongolicum (88708) |