Chordata

... invertebrates: # 950,000 insects, # 81,000 mollusks, # 40,000 crustaceans, # 2,175 corals, # 130,200 others; + 59,811 vertebrates (Phylum Chordata): # 29,300 fish, # 6,199 amphibians, # 8,240 reptiles, # 9,956 birds, # 5,416 mammals. (Birds are not species btw, try Class (Aves)) sorry ...

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... invertebrates: # 950,000 insects, # 81,000 mollusks, # 40,000 crustaceans, # 2,175 corals, # 130,200 others; + 59,811 vertebrates (Phylum Chordata): # 29,300 fish, # 6,199 amphibians, # 8,240 reptiles, # 9,956 birds, # 5,416 mammals.

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... each kingdom. The phyla start to break the animals (or plants, fungi, etc) into smaller and more recognizable groups. The best known phylum is Chordata, which contains all animals with backbones (fish, birds, mammals, reptiles, amphibians). There is also Arthropoda (insects, spiders, crustaceans); ...

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... Arachnida Spiders, Scorpions Class: Insecta Ants, Bees Class: Malacostraca Crabs, Lobsters, Shrimps, Woodlice Class: Maxillopoda Barnacles Phylum: Chordata Animals With A Backbone Class: Aves Birds Class: Actinopterygii Ray-finned Fishes Class: Sarcopterygii Lungfishes Class: Cephalaspidomorphi ...

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... and we have reason to think that all major anatomical designs may have made their evolutionary appearance at that time. ...not only the phylum Chordata itself, but also all its major divisions, arose within the Cambrian Explosion (Gould, Stephen J., Nature, vol. 377, October 1995, p.682.) and ...

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