Here is we are offering a nice detailed fossil sponge. This is , maybe, aDiagonella (?) from the Cambrian of Marjum Formation Utah. these type of fossils are uncommon in tthis layer. no restorations, no color, just split perfect small sponges.
Cambrian cute Diagonella? sponge from Marjum formation
size: sponge ( 2 cm) slab 9 cm x 15 cm
restoration: NO glued part Positive and negative