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6 giorni fa · All vertebrates are built along the basic chordate body plan: a rigid axial endoskeleton (vertebral column and/or notochord) running along the length of the animal, dorsal to the gut tube, with a hollow dorsal nerve cord (the neural tube, which develops into the brain and spinal cord) running more dorsal to it.
- Animalia
- Vertebrata, J-B. Lamarck, 1801
3 giorni fa · Ascidians (Phylum: Chordata, Class: Ascidiacea), or sea squirts, are the largest and most diverse class of the sub-phylum Tunicata (also known as Urochordata). They comprise approximately 3000 described species found in all marine habitats from shallow water to the deep sea.
2 giorni fa · In addition, recent developmental genes expression data suggest that the chordate and deuterostomes ancestor was a worm-like solitary organism, similarly to enteropneust hemichordates (Brown et al. 2008). Citation Usage of data from the Hemichordata World Database in scientific publications should be acknowledged by citing as follows:
6 giorni fa · vertebrate, any animal of the subphylum Vertebrata, the predominant subphylum of the phylum Chordata. They have backbones, from which they derive their name. The vertebrates are also characterized by a muscular system consisting primarily of bilaterally paired masses and a central nervous system partly enclosed within the backbone.
3 mag 2024 · Chordate Medical Holding AB (Publ.) announces that the United States Patent and Trademark Office has issued a decision to grant...
18 apr 2024 · Split View. Cite. Permissions. Share. Abstract. Metameric somites are a novel character of chordates with unclear evolutionary origins. In the early branching chordate amphioxus, anterior somites are derived from the paraxial mesodermal cells that bud off the archenteron (i.e., enterocoely) at the end of gastrulation.
2 giorni fa · The chordate phylum has three subphyla, one of which is the vertebrates (see below). The other two subphyla are marine invertebrates: the tunicates (salps and sea squirts) and the cephalochordates (such as lancelets). Invertebrate chordates are close relatives to vertebrates.
