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Dielasma itaitubense
Taxonomy
Terebratula itaitubense was named by Derby (1874).
It was recombined as Gundarolasmina itaitubense by Smirnova (2007); it was recombined as Dielasma itaitubense by Fantini Sestini (1965), Li et al. (1986), Shen et al. (2016).
It was recombined as Gundarolasmina itaitubense by Smirnova (2007); it was recombined as Dielasma itaitubense by Fantini Sestini (1965), Li et al. (1986), Shen et al. (2016).
Sister species lacking formal opinion data
D. acutangulum, D. angulata, D. arkansana, D. arkansanum, D. burlingtonensis, D. corcula, D. corculum, D. coriformes, D. crawfordsvillensis, D. crowfordsvillensis, D. elongatum, D. elongatum, D. formosa, D. formosum, D. globosa, D. hastaeforme, D. hastata, D. hochstetteri, D. hochstetteri, D. hochstetteri, D. illinoisense, D. illinoisensis, D. inflata, D. julicum, D. kingi, D. netschajewi, D. oklahomensis, D. picketti, D. sacculus, D. shumardanum, D. truncatum, D. vesicularis, D. burlingtonensis, D. formosum, D. sinualum, D. sinuatum, D. biplex, D. biplex
Synonymy list
| Year | Name and author |
|---|---|
| 1874 | Terebratula itaitubense Derby |
| 1965 | Dielasma itaitubense Fantini Sestini p. 75 figs. Pl 8, figs 1a-c, 4a,b; text-fig 6 |
| 1986 | Dielasma itaitubense Li et al. figs. Pl 6, fig 7 |
| 2007 | Gundarolasmina itaitubense Smirnova p. 803 figs. Pl 5, fig 9; text-fig 76 |
| 2016 | Dielasma itaitubense Shen et al. p. 534 figs. 7H-FF |
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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.
†Dielasma itaitubense Derby 1874
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 7.72 | 2.80 | 14.0 | 9.20 | 4.01 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Collections (16 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Gzhelian | China (Guangxi) | Dielasma itaitubense (134310) | |
| Kungurian - Roadian | China (Xizang) | Dielasma itaitubense (182793 182796 182797 182799 182800 182801 182803) | |
| Wordian | China (Sichuan) | Gundarolasmina itaitubense (118413) | |
| Wordian | China (Nei Mongol) | Dielasma itaitubense (109257) | |
| Wordian | Pakistan | Dielasma itaitubense (125812) | |
| Capitanian | Pakistan | Dielasma itaitubense (119551 127032) | |
| Rhaetian | Papua New Guinea (Western Highland) | Dielasma itaitubense (42520 42523 42524) |