| Crumillospongia Temporal range: | |
|---|---|
| | |
| Fossil of Crumillospongia frondosa | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Porifera |
| Class: | Demospongiae |
| Order: | † Protomonaxonida |
| Family: | † Hazeliidae |
| Genus: | † Crumillospongia Rigby, 1986 [1] |
| Species | |
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Crumillospongia is a genus of middle Cambrian sponges known from the Burgess Shale and other localities from the Lower and Middle Cambrian. [2] [3] Its name is derived from the Latin crumilla ("money purse") and spongia ("sponge"), a reflection of its similarity to a small leathery money purse. That is, it has a saclike shape, and its wall has holes of two sizes, with a well-developed internal canal system. [2] 49 specimens of Crumillospongia are known from the Greater Phyllopod bed, where they comprise 0.1% of the community. [4]