Animal mesoderm forms by enterocoelic pouching, through invagination of the endoderm. The main deuterostome phyla are the Echinodermata and the Chordata. Echinoderms are exclusively marine and include starfish, sea urchins, and sea cucumbers. The chordates are dominated by the vertebrates (animals with backbones), which consist of fishes, amphibians, reptiles, birds, and mammals. The deuterostomes also include the Hemichordata (acorn worms). The Ecdysozoa are protostomes, named after their shared trait of ecdysis, growth by moulting. They include the largest animal phylum, the Arthropoda, which contains insects, spiders, crabs, and their kin. All of these have a body divided into repeating segments, typically
Subgroups of Amish of salvation or practices like community of goods that are normally not accepted among mainstream Amish. These groups are composed of members from different backgrounds, mostly Amish, Old Order Mennonite, Old German Baptist as well as people from non-plain churches, so-called seekers. The following are groups (past and present) described as "para-Amish" by Waldrep: Waldrep describes a pattern across these movements that when families that made up a group dispersed, they typically rejoined the Amish, the Charity Movement, other assimilated Anabaptist churches, or one of the other para-Amish groups. Subgroups of Amish Subgroups of Amish developed over the years, as