👉 Orthotrichales are a group of marine animals that primarily inhabit warm, tropical waters, including many species found in coral reefs and mangroves. These animals have a wide range of adaptations, including large gills adapted for extracting oxygen from seawater, which they use to extract nutrients from the water. They also have specialized structures for feeding on plankton and other small organisms, including trilobites, which are known for their ability to feed on small crustaceans.