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Os cordados ( Chordata, do latim chorda, corda) constituem um filo dentro do reino Animalia que inclui os vertebrados, os anfioxos e os tunicados.
A chordate ( / ˈkɔːrdeɪt / KOR-dayt) is a deuterostomic animal belonging to the phylum Chordata ( / kɔːrˈdeɪtə / kor-DAY-tə ). All chordates possess, at some point during their larval or adult stages, five distinctive physical characteristics ( synapomorphies) that distinguish them from other taxa.
The Cambrian chordates are an extinct group of animals belonging to the phylum Chordata that lived during the Cambrian, between 538 and 485 million years ago. The first Cambrian chordate known is Pikaia gracilens, a lancelet -like animal from the Burgess Shale in British Columbia, Canada.
Chordates, phylum Chordata, are a phylum of animals which have a notochord. The group includes vertebrates, with some closely related invertebrates . Classification. Taxonomy. Phylum Chordata. Tunicata – (tunicates, formerly Urochordata; 3,000 species) † Vetulicolia (8 Cambrian species of fossil) Cephalochordata – (lancelets, 30 species)
19 de jun. de 2024 · Chordate is a phylum of animals that includes vertebrates, tunicates, and cephalochordates. Learn about their general features, life cycle, ecology, and evolution from Britannica.
9 de abr. de 2022 · Adult lancelets retain the four key features of chordates: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail. Water from the mouth enters the pharyngeal slits, which filter out food particles. The filtered water then collects in the atrium and exits through the atriopore.
19 de jun. de 2024 · Chordate - Evolution, Paleontology, Anatomy: Chordates may have originated earlier than 590 million years ago and predate the fossil record. Hemichordates are probably the closest relatives of chordates.
