Concerning those bold terms, they were clearly defined and were all on the test so it should be just as useful to you as it was for me. It was not just random highlighting. I did well in this course because this historical text provided a great balance of basic geology and paleontology. This updated 8th edition provides rich, dependable coverage of the history of the Earth. It maintains its strong approach to stratigraphy and paleontology that other texts have lost. A lot of teachers still prefer to use this text book instead of the newer one, I know from experience. The text's paleogeographic maps are excellently detailed and help a lot in understanding the earth's history. All in all, this book is tightly bound, sturdy and at a fair price. I am eager to sell it so if an offer is made, I will ship it to you the following day. I know I am new to this, but I am reliable.