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| Classement: | Species |
|
|---|---|---|
| mère: | Ectoceras Stecker, 1875 | |
| Nom spécifique: | helferi | |
| paternité: | Stecker | |
| Publication: | Über neue indische Chernetiden. Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften, Mathematisch-Naturwissenschaften Classe 72: 512-526. | |
| Page: | 516 | |
| Figure(s): | plate 1 figs 1–5, 7–9 | |
| Spécimen type (s): | ||
| Localité type: | India | |
| Fossile: | No | |
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