We are offering a nice detailed fossil sponge. This is a Choia carteri from the Cambrian of Marjum Formation Utah. Its skeleton somewhat resembling a pincushion, with siliceous spicules. The super long basal spicules likely anchored the body in soft seafloor mud.
Cambrian Choia carteri fossil sponge from Utah
size: sponge ( 3 cm) slab 13 cm x 9 cm
restoration: NO glued part