In today's world, Xenambulacraria has acquired unprecedented relevance. With the advancement of technology and globalization, Xenambulacraria has become a topic of interest to a wide range of people and sectors. Whether we are talking about Xenambulacraria in the field of health, education, politics or entertainment, its impact is undeniable. In this article, we will explore the role of Xenambulacraria in today's society and how it is shaping our world in innovative and unexpected ways. This analysis will allow us to better understand the role Xenambulacraria plays in our lives and how it will continue to evolve in the future.
Xenambulacraria Temporal range:
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Examples of all four branches of Xenambulacraria | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Subkingdom: | Eumetazoa |
Clade: | ParaHoxozoa |
Clade: | Bilateria |
Clade: | Xenambulacraria Bourlat et al, 2006 |
Clades | |
Xenambulacraria is a proposed clade of animals with bilateral symmetry as an embryo, consisting of the Xenacoelomorpha (i.e., Xenoturbella and acoelomorphs) and the Ambulacraria (i.e., echinoderms and hemichordates).
If confirmed, the clade would either be the sister group to the chordates (if deuterostomes are monophyletic) or the sister group to all the other bilaterians, grouped together in Centroneuralia (with deuterostomes being paraphyletic).
Although the validity of the clade relies mostly on phylogenomics, molecular genetics studies have proposed pigment cell clusters expressing polyketide synthase (PKS) and sulfotransferase as a synapomorphy of Xenambulacraria.
Xenambulacraria has usually been recovered as a clade inside of either of two distinct phylogenies.
The following phylogeny assumes a paraphyletic Deuterostomia, with Xenambulacraria at the base of Bilateria.
The following phylogeny assumes a monophyletic Deuterostomia, with Xenambulacraria nested inside of it.