Deuterostomes (from Greek: lit. 'second mouth') are bilaterian animals of the superphylum Deuterostomia (/ ˌdjuːtərəˈstoʊmi.ə /), [3][4] typically characterized by their anus forming …

The word deuterostome comes from the Greek word meaning “mouth second,” indicating that the anus is the first to develop. The phyla Echinodermata and Chordata (the phylum in which …

2017年4月28日 · The Deuterostomes are a clade of animals that undergo deuterostomy during their embryonic development. They are a sister-clade of the Protostomes, and the two …

In deuterostomes, the endodermal lining of the archenteron usually forms buds called coelomic pouches that expand and ultimately obliterate the embryonic blastocoel (the cavity within the …

Deuterostomia, (Greek: “second mouth”), group of animals—including those of the phyla Echinodermata (e.g., starfish, sea urchins), Chordata (e.g., sea squirts, lancelets, and …

2024年5月21日 · Deuterostomes are a large superphylum of animals that includes chordates (vertebrates), echinoderms, hemichordates (acorn worms), and one small phyla, …

2024年3月7日 · In biology, a deuterostome is a type of animal that develops its anus before its mouth. This group includes vertebrates, such as humans, and some invertebrates like sea …

Here we review four key areas where there has been the most heated debate in the last five years: phylogenetic relationships of the major deuterostome groups; the earliest fossil record …

2020年1月31日 · “Deuterostome” the word means “second mouth”. It is a superphylum of kingdom Animalia grouping together all the animals having bilateral symmetry and the …

2017年2月26日 · Deuterostomes belong to the subtaxon: Deuterostomia of Bilateria. In deuterostomes, the original blastopore develops into the anal opening. Eventually, the gut is …