Can you tell me the characteristics of cephalopods? Class Cephalopoda. Cephalopods are a class of shell-bearing animals as well as mollusks with a reduced shell. Cephalopods are mollusks (Cephalopoda), a class that includes octopuses, squid, cuttlefish, and also nautilus. Developed head, tentacles, large brain, chitinous beak/radula. This is one of several characteristics that most members of this class share. Squid are in the Mollusca phylum and the class Cephalopoda. The foot in Cephalopods is incorporated into the mantle cavity and the head is in line with the visceral mass. Facts about cephalopods tell you about the marine animals included in the molluscan class of Cephalopoda. What does Cephalopoda mean? The man who created the scuba and the first to say that the octopus was intelligent. The word cephalopod means "head-footed" and describes the body structure of the invertebrates. Today, scientists divide the living cephalopods into … "head foot" Who is Jacques Cousteau? Examples of class Cephalopoda. The body has the bilateral symmetry. Cuttlefish, like most cephalopods, have a large and well-developed head. Cephalophod Characteristics • Characteristics of class • All marine • Most 6-70 cm up to 20m Architeuthis • Shell divided by septa, chambers connected by siphuncle • Closed circulatory system • Foot modification • Ganglia fused to form large brain in cartilaginous cranium • ~700 … The cephalopods are a diverse class of mollusks (a group that also includes snails and bivalves) that emerged during an explosion of animal diversity in the oceans during the Cambrian period, over 500 million years ago (mya). Unlike its extant sister group Nautiloidea, whose members have a rigid outer shell for protection, the coleoids have at most an internal cuttlebone, gladius, or shell that is used for buoyancy or support. Cephalopods are a special group that is made up of the squids, octopi, cuttlefish, nautilus, and the deep-water spirula. In English, it means head feet. All cephalopods are predators. Characteristics of Clas Cephalopoda. These are ancient species that are discovered in all of the globe’s oceans, and are believed to have actually originated about 500 thousand years earlier. Their foot is divided into may tentacles with strong suction cups or hooks for capturing prey. Squid, cuttlefish, octopus, nautilus. They display vivid coloration, typically seen in … Class Cephalopoda (“head foot” animals) includes octopi, squids, cuttlefish, and nautilus. Class Cephalopoda  General characteristics: They are the most complex invertebrates and mulluscs , The foot of a cephalopoda has evolved into tentacles or arms used for capturing prey, movement , and attachment. The name "Cephalopoda" literally means "head-foot", as the foot is directly attached to the head. The name of this class is taken from the Greek word. 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