Ambulacraria Ambulacraria Ambulacraria or Coelomopora is a Superphylum of invertebrate phyla which includes echinoderms and hemichordates; a member of this group is called an ambulacrarian. Phylogenetic analysis suggest the echinoderms and hemichordates separated around 533 million years ago. The Ambulacraria are part of the deuterostomes, a larger clade that also includes the Chordata, Vetulicolia and Saccorhytus. The two living clades with representative organisms are: The group Xenoturbellida (two species of worm-like animals) has previously been considered to be in this clade, but is now considered to be placed more basally among Metazoans. Fossil taxa that may lie on the stem lineage:
Anelida and Arcite on Chaucer's part to extend the form into a much longer poem. Anelida and Arcite Anelida and Arcite is a 357-line English poem by Geoffrey Chaucer. It tells the story of Anelida, queen of Armenia and her wooing by false Arcite from Thebes, Greece. Although relatively short, it is a poem with a complex structure, with an invocation and then the main story. The story is made up of an introduction and a complaint by Anelida which is in turn made up of a proem, a strophe, antistrophe and a conclusion. After the complaint there are a few lines which