Hazeliidae Explained

Hazeliidae is an extinct family of spicular Cambrian sea sponges known from the Burgess Shale, the Marjum Formation of Utah,^[1] and possibly Chengjiang.^[2] It was described by Charles Walcott in 1920.

Notes and References

1. 1306598. 994–997. The First Occurrence of the Burgess Shale Demosponge Hazelia palmata Walcott, 1920, in the Cambrian of Utah. Journal of Paleontology. 71. 6. 1997 . J. Keith Rigby. Lloyd F. Gunther . Freida Gunther. 10.1017/S0022336000035976. 130706440.
2. 737–748. 2007. 10.1016/j.geobios.2007.02.006. J.. 40. 'Cambrian' demosponges in the Ordovician of Morocco: Insights into the early evolutionary history of sponges. Geobios. Botting. 6 .