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Atomodesma exaratum
Taxonomy
Atomodesma exarata was named by Beyrich (1865). It is a 3D body fossil. Its type locality is Bakanassij, south of Kupang (Atomodesma layer), which is in a Wuchiapingian carbonate limestone in Indonesia.
It was corrected as Atomodesma exaratum by Astafieva (1993), Waterhouse and Chen (2006) and Biakov (2018).
It was corrected as Atomodesma exaratum by Astafieva (1993), Waterhouse and Chen (2006) and Biakov (2018).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1865 | Atomodesma exarata Beyrich p. 71 figs. Pl 3, figs 4a,b |
| 1892 | Atomodesma exarata Rothpletz p. 85 |
| 1922 | Atomodesma exarata Wanner |
| 1978 | Atomodesma exarata Waterhouse p. 99 |
| 1993 | Atomodesma exaratum Astafieva p. 80 figs. Pl 1, figs 1-5 |
| 2006 | Atomodesma exaratum Waterhouse and Chen |
| 2018 | Atomodesma exaratum Biakov p. 767 figs. Pl 10, fig 13 |
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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.
†Atomodesma exaratum Beyrich 1865
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 5 | 32.8 | 25.0 | 41.0 | 33.8 | 5.71 |
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| Source: subc = subclass, c = class | |||||
| References: Eaton 1871, Aberhan et al. 2004 | |||||
Age range: base of the Roadian to the top of the Early/Lower Triassic or 272.30000 to 247.20000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Roadian | Australia (Western Australia) | Atomodesma exarata (84478) Atomodesma exaratum (84342) | |
| Capitanian | Russian Federation | Atomodesma exaratum (198796) | |
| Wuchiapingian | Indonesia | Atomodesma exarata (132775 132792) | |
| Changhsingian | Nepal | Atomodesma exarata (43187) Atomodesma exaratum (62447 62449) | |
| Early/Lower Triassic | Indonesia (Timor) | Atomodesma exarata (205611) |