有时将古生物学分为古植物学(植物化石研究)、古动物学(动物化石研究)以及古生态学。

Sometimes the subject is divided into paleobotany, the study of fossil plants, paleozoology, the study of fossil animals, and paleoecology.

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古生物学专业研究化石和学习已灭绝的生物物种。课程包括化石的形成和化学，植物化石，实地和实验室的研究方法等。

Paleontology majors study fossils and learn about extinct life forms. Topics of study include fossil formation and chemistry, fossil plants, methods of research in the field and lab, and more.

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