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Invertebrate Paleontology: Study of invertebrate animal fossils, such as mollusks, echinoderms, and others.Vertebrate Paleontology: Study of vertebrate fossils, from primitive fishes to mammals.He would have answered that the Earth was ancient, that there had not been a Noachian flood, and that the species of life had not been fixed over the history of Earth.In short, Genesis was an allegory and not literal history.

These are chemical elements, like carbon or uranium, that are identical except for one key feature -- the number of neutrons in their nucleus.Only hard parts, like bones and teeth, can become fossils.But for some people, the discovery raised a different question.If, in the year AD 1600, you had asked an educated European how old the planet Earth was and to recount its history he would have said that it was about 6000 years old and that its ancient history was given by the biblical account in Genesis.If you asked the same question of an educated European in AD 1900 you would have received a quite different answer.