Crossaster papposuses are commonly called Rose Sea Stars. Rose Sea Stars are classified as the following: Kingdom: Animalia Phylum: Echinodermata Class: Stelleroidea Order: Spinulosida Family: Solasteridae Genus: Crossaster Species: Crossaster papposus Rose Sea Stars lived in the Quarternary Period of the Cenozoic Era of the Geologic time scale. It has lived from 1 million years ago to present day. Other species of that time are man and saber-toothed cats. Crossaster papposuses usually have anywhere from eight …showed first 75 words of 306 total…

…showed last 75 words of 306 total…not true fish. Rose Sea Stars are know to be dominant predator in their area. They feed on bivalves, cnidarians, and tunicates. Rose Sea Stars live on the bottom of rocks anywhere from low tide to 1080 feet deep. Crossasters are originally a Japanese species, but are very rare on southern coasts. Starfish are highly mobile. Large individuals can go up to five meters in twelve hours. Starfish are Echinoderms. The word "Echinoderm" means "spiny skin".