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What is a Cambrian chordate?
What is Chordate genomics?
What is the Chordata category?
What is chordate phylogeny?
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.
This article contains a list of all of the classes and orders that are located in the Phylum Chordata .
Chordate genomics is the study of the evolution of the chordate clade based on a comparison of the genomes of several species within the clade. The field depends on whole genome data (the entire DNA sequence) of organisms.
Wikimedia Commons has media related to Chordata. This category consists all articles on taxa at the subphyla and class levels in the Chordata phylum. Subcategories. This category has the following 10 subcategories, out of 10 total. A. Craniate anatomy (3 C) Cephalochordata (17 P) Extinct chordates (2 C, 2 P) Myxinidae (36 P)
Structure. The notochord is a long, rod-like midline structure that develops dorsal to the gut tube and ventral to the neural tube. The notochord is composed primarily of a glycoproteins core that is encased in a sheath of collagen fibers. This is wound into two opposing helices.
The endostyle is an organ in the pharynx of chordate animals that assists in filter-feeding, and is found in adult cephalochordates ( lancelets) and urochordates ( sea squirts, salps and larvaceans ), as well as in the larvae of some basal vertebrates (specifically the lampreys ), [1] but has been transformed through evolution into ...
