Ildraites beckeri
- Citations total:
- 3
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| original | Late Ludlovian | Canada(Arctic) | Walliser,O.H. Scolecodonts, conodonts and vertebrates. (In: A Late Silurian fauna from the Sutherland River Formation, Devon Island, Canadian Arctic Archipelago) | 1960 | |
| details | Late Ludlovian | Canada(Arctic) | Jansonius,J. et al. Scolecodonts 1. Descriptive terminology and revision of systematic nomenclature; 2.Lectotypes, new names for homonyms, Index of species. | 1971 | |
| details | Late Gothlandian | North America | Taugourdeau,P. Scolecodont dispersa | 1978 |