👉 Nomoclastidae is a group of small, hard-bodied crustaceans that are part of the clade known as the Mesopoda in the class Ophidiomycetes. These creatures have a large, flattened body and a long, thin tail with several spines or hooks on the sides. Their bodies are covered in tough, durable exoskeletons made up of complex structures called "nemones." They are known for their hard-shelled shells that may contain small