👉 Lophogastrida are a group of small, flat-bodied crustaceans that belong to the family Galápagosiidae. They are known for their distinctive and colorful shells, which are typically composed of multiple layers of calcium carbonate and can vary in size from very small to large. Lophogastrids have been found on various continents, including Australia, South America, and Antarctica. Lophogastrida are commonly associated with marine environments, such as seagrass beds