Summary: The text discusses Parajivavidya, a Bengali language textbook on Palaeontology organized to cover all major disciplines of the subject for B. Sc. Geology students, eliminating the need for multiple costly foreign publications. The book covers past life, plants, and animals, along with general principles, life habitats, evolution, and micropalaeontology in concise outlines. The structure includes five parts with introductory chapters defining the subject, discussing plant and animal kingdoms, and geological timescales leading into the study of fossils. Various fossil assemblages and index fossils for stratigraphy application are also discussed, along with systematic Palaeontology, providing the necessary foundation for comprehensive learning. The detailed explanation includes examples of genera and species in different classification orders. Specific sections focus on different classes, orders, and principles, making the book elaborate but educational in its approach to the subject matter.