Information: - Hoplocarida is a subclass of crustaceans . The only extant members are the mantis shrimp ( Stomatopoda ) , but two other orders existed in the Palaeozoic : Aeschronectida and Palaeostomatopoda . - The mantis shrimp, or stomatopod, is a type of marine crustacean of the order Stomatopoda. Stomatopods branched from other members of the Class Malacostraca around 400 Mya. The majority of Stomatopoda species grow to around in length. A few can reach up to . The largest mantis shrimp ever caught had a length of and was caught in the Indian River near Fort Pierce, Florida, in the United States. A mantis shrimp's carapace (the bony, thick shell that covers crustaceans and some other species) covers only the rear part of the head and the first four segments of the thorax. Varieties range from shades of brown to vivid colours, as there are more than 450 species of mantis shrimp. They are among the most important predators in many shallow, tropical and sub-tropical marine habitats. However, despite being common, they are poorly understood as many species spend most of their life tucked away in burrows and holes. - Fort Pierce is a city in and the county seat of St. Lucie County, Florida, United States. It is also known as the Sunrise City, sister to San Francisco, California, the Sunset City. The population was 41,590 at the 2010 census. As of 2012, the population recorded by the U.S. Census Bureau was 42,645. It is named after the army installation of Fort Pierce built in the area in 1838 during the Second Seminole War. - A carapace is a dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tortoises, the underside is called the plastron. - A habitat is an ecological or environmental area that is inhabited by a particular species of animal, plant, or other type of organism. The term typically refers to the zone in which the organism lives and where it can find food, shelter, protection and mates for reproduction. It is the natural environment in which an organism lives, or the physical environment that surrounds a species population. - The thorax or chest (from the Greek "thorax" "breastplate, cuirass, corslet" via ) is a part of the anatomy of humans and various other animals located between the neck and the abdomen. The thorax includes the thoracic cavity and the thoracic wall. It contains organs including the heart, lungs, and thymus gland, as well as muscles and various other internal structures. Many diseases may affect the chest, and one of the most common symptoms is chest pain. After reading the paragraphs above, choose the best answer for the entity that related to 'hoplocarida' with the relationship of 'parent taxon'. Choices: - animal - area - california - malacostraca - mantis - mya - stomatopoda - thorax
malacostraca