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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Roundyella papilliformis
Taxonomy
Roundyella papilliformis was named by Wang (1978).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Roundyella papilliformis Wang |
| 1987 | Roundyella papilliformis Gerry and Honigstein p. 205 figs. Pl 2, fig 36 |
| 2005 | Roundyella papilliformis Yan et al. p. 249 figs. Pl 1, figs 5,6 |
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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.
†Roundyella papilliformis Wang 1978
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| carapace height | 2 | 0.250 | 0.250 | 0.250 | 0.250 | - | |
| valve height | 1 | 0.360 | - | - | - | - |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Alvarez et al. 2008 | |||||
Age range: base of the Sakmarian to the top of the Griesbachian or 293.52000 to 250.50000 Ma
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Sakmarian | China (Zhejiang) | Roundyella papilliformis (120910) | |
| Wuchiapingian - Changhsingian | Israel | Roundyella papilliformis (95762) | |
| Changhsingian | China (Fujian) | Roundyella papilliformis (121203 121230 121290 121291 121293) | |
| Changhsingian | Israel | Roundyella papilliformis (108988 108990) | |
| Griesbachian | Iran | Roundyella papilliformis (168942) |