Conulariid
Conulariid / Conulata was a marine filtering feeder that fed on organic particles washed around by currents. They resemble a four sided cone made up of rows of calcium phosphate rods. They lived anchored to hard objects by a flexible stalk and often lived in groups. The fossil above is a good example of a Conulariid. Possibly in the Genus Notoconularia inornata. Fossil specimen from the South Coast of NSW.