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Notothyris irregularis
Taxonomy
Notothyris irregularis was named by Grabau (1931). It is a 3D body fossil. Its type locality is Jisu Honguer Limestone Undivided, which is in a Wordian carbonate limestone in the Zhesi Formation of China.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1931 | Notothyris irregularis Grabau p. 115 figs. Pl 7, fig 6; pl 9, fig 3 |
| 1995 | Notothyris irregularis Zeng et al. figs. Pl 21, fig 5 |
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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.
†Notothyris irregularis Grabau 1931
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 3.44 | 3.20 | 3.70 | 3.45 | 0.354 |
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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 Changhsingian or 266.90000 to 251.90200 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wordian | China (Nei Mongol) | Notothyris irregularis (type locality: 109257) | |
| Changhsingian | China (Chongqing) | Notothyris irregularis (156863) |