What family does a sand dollar belong to

To beachcombers of the past, sand dollars suggest a large, silver coin, such as the old spanish or american dollar.Spiny echinoderms, such as starfish and urchins, can reproduce asexually by rejuvenating, or reproducing damaged limbs and spines.The sand dollar is particularly well adapted for burrowing in sandy substrates.Sand dollars are small in size, averaging from three to four inches.Sand dollars reproduce through a behavior called broadcast spawning.Sand dollars are marine invertebrates that belongs to the group of echinoderms.

A sand dollar's body has five jaw sections, 50 calcified skeletal elements, and 60 muscles.Their scientific name is dendraster excentricus.Well, this beachcomber of the present has a lot of sand.The sand dollar is a group of sea urchins belonging to the order clypeasteroida and consisting of more than twenty families.A complete and intact sand dollar fossil is a coveted prize among many beachcombers.A sand dollar is usually found in sea urchins groups, which includes over 20 families, called colonies.