Spiriferid are brachiopods filtering feeders that fed on organic particles washed around by the ocean currents. The valves (each shell side) has pronounced folds and sulcus (furrow, fissures). They lived in mud by anchoring to the sea floor with a fleshy stalk called a pedicle that protruded from the shell’s hinge. Specimen from the South Coast of NSW.
Bivalve-Mollusc brachiopod Brain Coral Bryozoan Cephalopod Club Moss compound rugose coral Conulariid Coral Crinoid Crinoidea Crinoids Echinoderm Echinodermata Favosites feather duster coral Gastropod Glossopteris Glossopteris Branch Graptolite Graptolites Graptolithina Graptolithinia Hexagonaria Horn Coral Lamp Shell Leaf Lepidodendron Leptagonia Proteus Rugose Coral Solitary Rugose Coral Spiny Brachiopod Spiriferida Stigmaria ficoides Syringopora tabulate coral Themnopora Trilobite Vertebraria