Chordata (Bateson, 1885) or chordates are animals with backbones.
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- Actinopterygii (Fishes with ray-like fins)
- Amphibia (Cold-blooded vertebrates that metamorphose from a juvenile, water-breathing form to an adult, air-breathing form)
- Amphibsida (Like synapsids, except they are a cross between mammals and amphibians)
- Aves (A class of warm-blooded chordates fitting the criteria of birds)
- Avipsida (Mammal-bird species)
- Avoidia (Birdlike creatures that don't fit into the class Aves for any of several reasons)
- Brutusillia (Mammals in most ways except that they are cold blooded and do not have sweat glands)
- Cephalaspidomorphi (Jawless fish with a single dorsal nostril)
- Hemiinsecta (Vertebrates with insect-like exoskeletal armor)
- Mammalia
- Sauropsida (Chordates which have scales and breathe air)
- Susprimata (Are a pig-headed monkey like species, product of the genetic resembles of a pig head & primate ability)
- Synapsida (Warm-blooded reptiles, or near-reptilian mammals)
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