1. Branchial basket definition is - the cartilaginous structure supporting the gills in protochordates and lower vertebrates (such as ascidians, amphioxi, and cyclostomes).

2. In skeleton: General features Paired Appendages are not found in ancestral vertebrates and are not present in the modern cyclostomes (e.g., lampreys, hagfishes)

3. In Cartilaginous fish and cyclostomes the entire skeleton consists of cartilage; in other vertebrates the Cartilaginous skeleton occurs only in embryos.

4. Anamniote definition, any of the vertebrates of the group Anamnia (Anamniota), comprising the cyclostomes, fishes, and amphibians, characterized by the absence of …

5. While in Amphioxus (Branchiostoma lanceolatum) there is only one uniform type of ependymal gliocytes, already in cyclostomes astrocytes, oligodendrocytes and mesoglia cells can be observed.

6. Meronyms (members of "Agnatha"): Agnathan; jawless fish; jawless vertebrate (eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms)

7. Other articles where Appendage is discussed: skeleton: General features: Paired Appendages are not found in ancestral vertebrates and are not present in the modern cyclostomes (e.g., lampreys, hagfishes)

8. Agnatha (Ancient Greek ἀ-γνάθος no jaws) is a superclass of jawless fish in the phylum Chordata, subphylum Vertebrata, consisting of both present (cyclostomes) and extinct (conodonts and ostracoderms) species