Hazelia Explained

Hazelia is a genus of spicular Cambrian demosponge known from the Burgess Shale, the Marjum formation of Utah,^[1] and possibly Chengjiang.^[2] It was described by Charles Walcott in 1920.^[3]

Its tracts are mainly radial and anastomose to form an irregular skeleton.^[1] Its oxeas form a fine net in the skin of the sponge.^[1]

External links

• Web site: 2011. Hazelia palmata. Burgess Shale Fossil Gallery. Virtual Museum of Canada. https://web.archive.org/web/20201112025257/http://burgess-shale.rom.on.ca/en/fossil-gallery/view-species.php?id=64. 2020-11-12. dead. 2023-01-21.

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. 1997JPal...71..994R. 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 . 2007Geobi..40..737B.
3. Walcott . C. D. . 1920 . Cambrian geology and paleontology IV:6—Middle Cambrian Spongiae . . 67 . 261–364 .