The bull ray feeds on various invertebrates including crabs, hermit crabs, squids, prawns, gastropod molluscs and bivalve molluscs.
The diet of the freshwater drum is generally benthic and composed of macroinvertebrates (mainly aquatic insect larvae and bivalve mussels), as well as small fish in certain ecosystems.
Main items in the diet of I. labrosus are aquatic insects (mainly Chironomidae) and mollusks (mainly Bivalvia).
Among the 93 species which are found to threaten the natural local biodiversity, are bacteria, macroalgae, microalgae, pseudofungi, fungi, mosses, vascular plants, comb jellies, flatworms, roundworms, crustaceans, arachnids, insects, snails, bivalves, tunicates, fishes and mammals.
Marine fossils (bivalves and ammonites) may be found within some of the limestone beds.
These include bivalves and other molluscs, polychaete worms, amphipods and juvenile fish which hide among the leaf blades, sea urchins, crabs and caridean shrimps.
"The stratigraphical range of Macoma balthica (l.) Bivalvia, Tellinacea in Pleistocene of the Netherlands and eastern England".
The term heterodont can also refer to members of the Subclass Heterodonta of the Class Bivalvia.
The rainbow star is a predator and feeds on a range of invertebrates including gastropod molluscs, limpets, bivalves, brachiopods, chitons, barnacles and tunicates.
Paphies subtriangulata is a species of edible bivalve clam known as tuatua in the Māori language, a member of the family Mesodesmatidae and endemic to New Zealand.
The Winton Formation had a faunal assemblage including bivalves, gastropods, insects, the lungfish Metaceratodus, turtles, the crocodilian Isisfordia, pterosaurs, and several types of dinosaurs, such as the theropod Australovenator, the sauropod Diamantinasaurus, and unnamed ankylosaurians and hypsilophodonts.