Sponges bibliography — TalkOrigins Archive

Rigby, J. K., 1986, Sponges of the Burgess Shale (Middle Cambrian) British Columbia: Palaeontographica Canada, v. 2.

Walcott, C. D., 1920, Middle Cambrian Spongiae. Cambrian Geology and Paleontology, IV: Smithsonian Miscellaneous Collections, v. 67, p. 261-364.

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