Tribute to ArthurWeasley/Nobu Tamura It seems that he has left Wikipedia but is still uploading images under a new persona... oh well.
A phylum of invertebrates with a shell and a fleshy "foot".
Animals with a notocord. All the following groups of animals are chordates, but these chordates are not classified as vertebrates, and so are classified in the wastebasket taxon Invertebrates.