Siphusauctum
| Siphusauctum Temporal range:  | |
|---|---|
| Holotype of S. gregarium | |
| Fossil of S. lloydguntheri | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Ctenophora | 
| Stem group: | Ctenophora | 
| Family: | †Siphusauctidae O'Brien & Caron, 2012 | 
| Genus: | †Siphusauctum O'Brien & Caron, 2012 | 
| Species | |
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Siphusauctum is an extinct genus of filter-feeding animals that lived during the Middle Cambrian about 510 million years ago.