†Medfraspongia tubulara Rigby et al. 2009 (demosponge)
Full reference: J. K. Rigby, R. B. Blodgett, and N. K. Anderson. 2009. Emsian (Early Late Devonian) sponges from west-central and south-central Alaska. Journal of Paleontology 83(2):293-298
Belongs to Medfraspongia according to J. K. Rigby et al. 2009
Sister taxa: none
Type specimen: USNM 535927
Ecology: stationary epifaunal suspension feeder