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Deuterostômios ( português brasileiro) ou deuterostómios ( português europeu) ( deuterostomia Grobben, 1908; do grego deuteros, posterior + stoma, boca), é um grupo de animais ligados por diversos aspectos embrionários peculiares, como a forma de clivagem, a forma de suas larvas, o desenvolvimento do celoma e pelas aberturas ...
Origins and evolution. Phylogeny. Fossil record. References. Further reading. External links. Deuterostomes (from Greek: lit. 'mouth second') are bilaterian animals of the superphylum Deuterostomia ( / ˌdjuːtərəˈstoʊmi.ə / ), [3] [4] typically characterized by their anus forming before the mouth during embryonic development.
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 vertebrates), Chaetognatha ( e.g., arrowworms), and Brachiopoda ( e.g., lamp shells)—classified together on the basis of embryological development and by ...
- The Editors of Encyclopaedia Britannica
The embryological origin of the mouth and anus is an important characteristic, and forms the morphological basis for separating bilaterian animals into two natural groupings: the protostomes and deuterostomes .
Artigo sobre os animais deuterostômios, quais são as diferenças para os protostômios, exemplos de filos de animais Deuterostomados, etc.
22 de abr. de 2015 · This group, the deuterostomes, provides the phylogenetic framework for developing hypotheses about the origin of chordate features through comparative morphology, embryology and genomics.
Classification. Phylogeny. References. Other references. External links. Hemichordate. Hemichordata ( / ˌhɛmikɔːrˈdeɪtə / HEH-mee-kor-DAY-tə) is a phylum which consists of triploblastic, enterocoelomate, and bilaterally symmetrical marine deuterostome animals, generally considered the sister group of the echinoderms.
