Chapter
Rigby, J.K.
2004b. Unrecognizable Supposed Sponges. In R.M. Finks, R.E.H. Reid & J.K. Rigby, Volume 3: Porifera (Demospongea, Hexactinellida, Heteractinida, Calcarea). In R.L. Kaesler (ed.), Treatise on Invertebrate Paleontology, Part E, Porifera (Revised). The Geological Society of America, Inc. and The University of Kansas, Boulder, Colorado, and Lawrence, Kansas: 765-773.