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  1. More Images

    Vertebrate

    Subphylum of chordates

    Vertebrates are animals with a vertebral column, and a cranium, or skull. The vertebral column surrounds and protects the spinal cord, while the cranium protects the brain. The vertebrates make up the subphylum Vertebrata with some 65,000 species, by far the largest grouping in the phylum Chordata. The vertebrates include mammals, birds, amphibians, and various classes of fish and reptiles. The fish include the jawless Agnatha, and the jawed Gnathostomata. The jawed fish include both the cartilaginous fish and the bony fish. Bony fish include the lobe-finned fish, which gave rise to the tetrapods, the animals with four limbs. Vertebrates make up less than five percent of all described animal species. The first vertebrates appeared in the Cambrian explosion some 518 million years ago. Jawed vertebrates evolved in the Ordovician, followed by bony fishes in the Devonian. The first amphibians appeared on land in the Carboniferous. Wikipedia

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  3. britannica.com

    vertebrate, any animal of the subphylum Vertebrata, the predominant subphylum of the phylum Chordata.They have backbones, from which they derive their name. The vertebrates are also characterized by a muscular system consisting primarily of bilaterally paired masses and a central nervous system partly enclosed within the backbone.. The subphylum is one of the best known of all groups of animals.
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  5. earthhow.com

    Fish are the swimmers of the vertebrate world, with scales, gills, fins, and a body that match the water they live in.Some are bony fish, like salmon, while others are cartilaginous fish, like sharks.. The gills of a fish are for breathing underwater in our 5 oceans or freshwater. This allows them to breathe underwater and extract oxygen to survive in their aquatic homes.
  6. animalfact.com

    They are members of the subphylum Vertebrata (also known as Craniata) within the phylum Chordata. Of more than 81,000 chordate species, over 69,963 are vertebrates, accounting for less than 5% of all animals living on Earth, the rest being invertebrates. Scientific Classification. Kingdom Animalia; Superphylum Deuterostomia; Phylum Chordata ...
  7. biologyonline.com

    May 28, 2023vertebrata (Science: zoology) One of the grand divisions of the animal kingdom, comprising all animals that have a backbone composed of bony or cartilaginous vertebrae, together with amphioxus in which the backbone is represented by. Vertebrata in the largest biology dictionary online. Free learning resources for students covering all major ...

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