Canistrumella alternata Rigby, 1986 Petaloptyon danei is a goblet-shaped hexactinellid sponge known from rare fragments from the Middle Cambrian Burgess Shale.

A few specimens of Petaloptyon are known from the Greater Phyllopod bed, where they comprise under 0.01% of the community.

[1] The fragments show the living animal had a stalk, and had panels with a lattice pattern.

This article related to a Cambrian animal is a stub.

You can help Wikipedia by expanding it.This prehistoric sponge article is a stub.