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Megadesmus robusta
Taxonomy
Cleobis robusta was named by Laseron (1910). Its type specimen is AM F.20167 and is a 3D body fossil. Its type locality is Burrier, which is in a Roadian offshore siliciclastic in the Wandrawandian Formation of Australia.
It was recombined as Megadesmus robusta by Waterhouse (1969).
It was recombined as Megadesmus robusta by Waterhouse (1969).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1910 | Cleobis robusta Laseron p. 208 figs. Pl 16, fig 1 |
| 1969 | Megadesmus robusta Waterhouse p. 78 figs. Pl 20, fig 2 |
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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.
†Megadesmus robusta Laseron 1910
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. B. Waterhouse 1969 | Large, little inflated, with umbo near anterior third |
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| valve height | 1 | 53.0 |
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range: base of the Roadian to the top of the Capitanian or 272.30000 to 259.51000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Roadian | Australia (New South Wales) | Cleobis robusta (161842 161850) | |
| Capitanian | New Zealand (Southland) | Megadesmus robusta (41777) |