Hazeliidae

Hazeliidae Temporal range: Chengjiang–Middle Ordovician [1] PreꞒ Ꞓ O S D C P T J K Pg N
A specimen of Hazelia at the Mount Stephen Trilobite Beds
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Porifera
Class:	Demospongiae
Order:	† Protomonaxonida
Family:	† Hazeliidae Walcott, 1920
Genera
Falospongia Rigby, 1986 Hazelia Walcott, 1920 Crumillospongia Rigby, 1986 [2]

Hazeliidae is an extinct family of spicular Cambrian sea sponges known from the Burgess Shale, the Marjum Formation of Utah, ^[3] and possibly Chengjiang. ^[1] It was described by Charles Walcott in 1920.

References

1. Botting, J. (2007). "'Cambrian' demosponges in the Ordovician of Morocco: Insights into the early evolutionary history of sponges". Geobios. 40 (6): 737–748. doi:10.1016/j.geobios.2007.02.006.
2. Rigby, J. K. (1986). "Sponges of the Burgess shale (Middle Cambrian), British Columbia". Palaeontographica Canadiana (2).
3. J. Keith Rigby; Lloyd F. Gunther; Freida Gunther (1997). "The First Occurrence of the Burgess Shale Demosponge Hazelia palmata Walcott, 1920, in the Cambrian of Utah". Journal of Paleontology. 71 (6): 994–997. doi:10.1017/S0022336000035976. JSTOR   1306598. S2CID   130706440.