| author | date | title | journal / publication | Simonetta AM, Delle-Cave L | 1978 | Notes on new and strange Burgess Shale fossils (Middle Cambrian of British Columbia). | Atti Soc Toscana Sci Nat Res Pisa Mem Ser A 85:45-49 |
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| Polycladida Platydendron Simonetta & Delle-Cave, 1978 | w | primary taxonomic authority (describer) | ||
| Platydendron ovale Simonetta & Delle-Cave, 1978 | w | primary taxonomic authority (describer) |