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Vacunella curvata
Taxonomy
Allorisma curvatum was named by Morris (1845). It is a 3D body fossil. Its type locality is Illawarra (Strzelecki coll), which is in a Wordian coastal siliciclastic in the Gerringong Formation of Australia.
It was recombined as Pholadomya (Homomya) curvata by Dana (1849); it was recombined as Sanguinolites curvatus by de Koninck (1877); it was recombined as Vacunella curvata by Runnegar (1967), Waterhouse (1967), Waterhouse (1969), Waterhouse (1983), Muromtseva and Guskov (1984), Waterhouse (1987), Waterhouse (1988), Dickins (1989), Astafieva-Urbajtis (1990) and Biakov (2019).
It was recombined as Pholadomya (Homomya) curvata by Dana (1849); it was recombined as Sanguinolites curvatus by de Koninck (1877); it was recombined as Vacunella curvata by Runnegar (1967), Waterhouse (1967), Waterhouse (1969), Waterhouse (1983), Muromtseva and Guskov (1984), Waterhouse (1987), Waterhouse (1988), Dickins (1989), Astafieva-Urbajtis (1990) and Biakov (2019).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1845 | Allorisma curvatum Morris p. 270 figs. Pl. 10, fig. 15 |
| 1847 | Allorisma audax Dana p. 153 |
| 1847 | Allorisma curvatum M'Coy p. 300 |
| 1849 | Pholadomya (Homomya) audax Dana p. 687 figs. Pl 3, fig 1 |
| 1849 | Pholadomya (Homomya) glendonensis Dana p. 687 figs. Pl 2, fig 12 |
| 1849 | Pholadomya (Homomya) curvata Dana p. 688 figs. Pl 3, fig 2 |
| 1876 | Sanguinolites mitchellii de Koninck p. 261 figs. Pl 16, figs 3,3a |
| 1877 | Sanguinolites curvatus de Koninck p. 207 |
| 1892 | Chaenomya bowenensis Etheridge Jr p. 280 |
| 1910 | Chaenomya mitchelli Laseron p. 209 |
| 1967 | Vacunella curvata Runnegar p. 63 figs. Pl 7, figs 15,16; pl 8, figs 1-9; pl 9, figs 15-17; pl 11, fig 14; pl 12, figs 9,10 |
| 1967 | Vacunella curvata Waterhouse |
| 1969 | Vacunella curvata Waterhouse p. 71 |
| 1983 | Vacunella curvata Waterhouse p. 252 figs. Pl 5, fig 10 |
| 1984 | Vacunella curvata Muromtseva and Guskov p. 95 figs. Pl 48, fig 1 |
| 1987 | Vacunella curvata Waterhouse p. 173 figs. Pl 13, fig 14; pl 14, fig 7 |
| 1988 | Vacunella curvata Waterhouse p. 200 figs. Pl 19, figs 13, 14; pl 20, fig 4 |
| 1989 | Vacunella curvata Dickins p. 69 figs. Pl 1, fig 15 |
| 1990 | Vacunella curvata Astafieva-Urbajtis p. 3 figs. Pl 5, fig 1 |
| 2019 | Vacunella curvata Biakov p. 247 figs. Pl 4, fig 27 |
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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.
†Vacunella curvata Morris 1845
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Invalid names: Allorisma audax Dana 1847 [synonym], Chaenomya bowenensis Etheridge Jr 1892 [synonym], Pholadomya (Homomya) glendonensis Dana 1849 [synonym], Sanguinolites mitchellii de Koninck 1876 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. B. Waterhouse 1987 | Elongate to subelongate weakly prosocline shells, umbones anterior, posterior dorsal face concave. |
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 7 | 40.4 | 9.50 | 90.0 | 43.0 | 29.3 | |
| valve height | 6 | 37.8 | 8.94 | 76.2 | 44.4 | 23.9 |
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| Source: g = genus, c = class | |||||
| References: Clapham 2015, Aberhan et al. 2004 | |||||
Age range: base of the Gzhelian to the top of the Changhsingian or 303.70000 to 252.17000 Ma
Collections (65 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Gzhelian - Asselian | Russian Federation | Vacunella curvata (202199) | |
| Sakmarian | Russian Federation | Vacunella curvata (102160) | |
| Kungurian - Roadian | Australia (New South Wales) | Vacunella curvata (135943 136655) | |
| Roadian | Australia (Tasmania) | Vacunella curvata (105423) | |
| Roadian | Australia (New South Wales) | Chaenomya mitchelli (161842) Vacunella curvata (136665) | |
| Wordian | Australia (Queensland) | Vacunella curvata (136658) | |
| Wordian | New Zealand (Nelson) | Vacunella curvata (41797) | |
| Wordian | New Zealand (Southland) | Vacunella curvata (41767) | |
| Wordian | Australia (New South Wales) | Allorisma curvatum (120474 133342 133343 134048) Pholadomya curvata, Allorisma audax (133336) Pholadomya glendonensis (98110) Vacunella curvata (105157 135942 136654 136663 136664 136667) | |
| Wordian | New Zealand | Vacunella curvata (52843 52897) | |
| Capitanian | New Zealand (Southland) | Vacunella curvata (41788 41789) | |
| Wuchiapingian | Australia (Tasmania) | Vacunella curvata (51314 82836 83176 86153 105430 105431 105432 105433 105434) | |
| Wuchiapingian | Australia (Queensland) | Vacunella curvata (83195 83207 83216 83219 83265 83266 85885 89399 101569 104740 107356 116751 120331 120333 120336 120338 120340 120539 120661 120667 133746 135926 136656 136657 136659 136660 136661 136662) | |
| Changhsingian | China (Fujian) | Vacunella curvata (111730) | |
| Changhsingian | New Zealand | Vacunella curvata (98149) |