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Aegitellus
Taxonomy
Aegitellus was named by Feng et al. (2000).
It was assigned to Tryblidiidae by Feng et al. (2000); and to Helcionellinae by Parkhaev and Demidenko (2010).
It was assigned to Tryblidiidae by Feng et al. (2000); and to Helcionellinae by Parkhaev and Demidenko (2010).
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Aegitellus Feng et al. p. 371 |
| 2010 | Aegitellus Parkhaev and Demidenko p. 1017 |
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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.
G. †Aegitellus Feng et al. 2000
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†Aegitellus placus Luo et al. 1982
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Invalid names: Aegitellus concentricus Feng et al. 2000 [synonym], Tannuella retusa Luo and Jiang 1982 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. Y. Parkhaev and Y. Demidenko 2010 | "Shell cap-shaped, low conical, very rapidly expanding from apex towards aperture. Apex straight, slightly pulled, displaced posteriorly. Aperture widely egg-shaped, without sinuses. Shell ornamentation represented by distinct concentric growth lines." |
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Hendy 2009, Feng et al. 2000, Hendy et al. 2009 | |||||
Collections (21 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Jinnigian | China (Yunnan) | A. emeishanensis (201549 201551) | |
| Nemakit-Daldynian | China (Yunnan) | A. concentricus (87095) | |
| Meishucunian - Nemakit-Daldynian | China (Yunnan) | A. concentricus (99813) | |
| Meishucunian | China (Yunnan) | A. emeishanensis (201514 201515 201516 201517 201519 201521 201545 201548 201552 201567 201570) | |
| Meishucunian - Tommotian | China (Yunnan) | Aegides placus (96284 96285 96288) A. concentricus (50465) | |
| Tommotian | China (Yunnan) | A. placus (171901 171902) |