Crumillospongia

Crumillospongia Temporal range: Upper Lower Cambrian–Middle Cambrian PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum*:	"Porifera"
Class:	Demospongiae
Order:	Monaxonida
Family:	Hazeliidae
Genus:	Crumillospongia Rigby 1986[1]
Species
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]

References

1. ^ Rigby, J. K. (1986). "Sponges of the Burgess shale (Middle Cambrian), British Columbia". Palaeontographica Canadia (2). 
2. ^ Briggs, D.E.G.; Erwin, D.H.; Collier, F.J. (1995), Fossils of the Burgess Shale, Washington: Smithsonian Inst Press, ISBN 156098659x, 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.  edit
4. ^ Caron, J. -B.; Jackson, D. A. (October 2006). "Taphonomy of the Greater Phyllopod Bed community, Burgess Shale". PALAIOS 21 (5): 451–465. doi:10.2110/palo.2003.P05-070R.  edit

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