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Temporal range: Upper Lower Cambrian–Middle Cambrian
Scientific classification e
Kingdom: Animalia
Phylum: Porifera
Class: Demospongiae
Order: Monaxonida
Family: Hazeliidae
Genus: Crumillospongia
Rigby 1986[1]
  • C. frondosa (Walcott 1919) Rigby 1986
  • C. biporosa Rigby 1986

Crumillospongia is a genus of middle Cambrian sponge known from the Burgess Shale and other localities from the Lower and Middle Cambrian.[2][3] Its name is a reflection of its similarity to a small leathery money purse, or Crumilla (L.). 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]

External links[edit]


  1. ^ Rigby, J. K. (1986). "Sponges of the Burgess shale (Middle Cambrian), British Columbia". Palaeontographica Canadiana (2). 
  2. ^ a b Briggs, D.E.G.; Erwin, D.H.; Collier, F.J. (1995), Fossils of the Burgess Shale, Washington: Smithsonian Inst Press, ISBN 1-56098-659-X, OCLC 231793738 
  3. ^ García-Bellido, D. C.; Dies Álvarez, M. E.; Gámez Vintaned, J. A.; Gozalo, R. (2011). "First report of Crumillospongia (Demospongea) from the Cambrian of Europe (Murero biota, Spain)". Bulletin of Geosciences: 641. doi:10.3140/bull.geosci.1253. 
  4. ^ Caron, Jean-Bernard; Jackson, Donald A. (October 2006). "Taphonomy of the Greater Phyllopod Bed community, Burgess Shale". PALAIOS. 21 (5): 451–65. JSTOR 20173022. doi:10.2110/palo.2003.P05-070R.