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What are fossil vertebrates?

The most prominent feature of vertebrate animals is the spine. The spine is composed of a series of individual vertebrae linked together to form a structure that is strong and capable of supporting the body, which is its most important function. The vertebrae can be categorized into cervical, thoracic, lumbar, and sacral bones based on their location. In addition, the hollow vertebrae are a channel for many of the nerves that send and receive signals to the muscles and organs of the vertebrate body. The digestive and circulatory systems are located on the ventral side of the spine in the abdomen. Bony vertebrae are found in most fish, frogs, lizards, snakes, birds, mammals and humans, all of which are vertebrates. Fossils are the remains preserved naturally as rock after the death of an organism, the remains of these vertebrate animals are often found in places where sedimentary rock has been formed.