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Gundarolasmina acutangulum
Taxonomy
Dielasma acutangulum was named by Waagen (1882). It is a 3D body fossil. Its type locality is Chidru, "Cephalopod Bed", Salt Range, which is in a Wuchiapingian carbonate limestone in the Chhidru Formation of Pakistan.
It was recombined as Whitspakia acutangula by Fantini Sestini (1965); it was recombined as Gundarolasmina acutangulum by Smirnova (2007).
It was recombined as Whitspakia acutangula by Fantini Sestini (1965); it was recombined as Gundarolasmina acutangulum by Smirnova (2007).
Synonymy list
| Year | Name and author |
|---|---|
| 1882 | Dielasma acutangulum Waagen p. 352 figs. pl 25, fig 1; Pl 26, figs 1,2 |
| 1908 | Dielasma acutangulum Mansuy p. 61 figs. Pl 15, fig 14 |
| 1915 | Dielasma acutangulum Diener p. 99 figs. Pl 10, fig 12 |
| 1944 | Dielasma acutangulum Reed p. 150 figs. Pl 44, fig 4 |
| 1965 | Whitspakia acutangula Fantini Sestini p. 79 figs. Pl 8, figs 3a,b |
| 1979 | Dielasma acutangulum Zhan p. 100 figs. Pl 9, fig 19 |
| 2007 | Gundarolasmina acutangulum Smirnova p. 804 figs. Pl 5, fig 10 |
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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.
†Gundarolasmina acutangulum Waagen 1882
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 8 | 10.6 | 8.20 | 15.2 | 10.4 | 2.02 |
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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 Wordian to the top of the Wuchiapingian or 266.90000 to 254.14000 Ma
Collections (24 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Guadalupian | Vietnam | Dielasma acutangulum (139274) | |
| Wordian | Iran (Tehran) | Whitspakia acutangula (43291) | |
| Wordian | China (Sichuan) | Gundarolasmina acutangulum (118413) | |
| Capitanian | Pakistan | Dielasma acutangulum (127033) | |
| Wuchiapingian | Pakistan | Dielasma acutangulum (type locality: 88933 90253 119744 125925 125961 125963 126002 126011 126264 126265 126267 126268 126272 126293 126300 126342 126984) | |
| Wuchiapingian | China (Guangdong) | Dielasma acutangulum (109776) | |
| Lopingian | India | Dielasma acutangulum (230850) | |
| Lopingian | China (Jiangxi) | Terebratula hastata (109628) |