ESCI 103
Professor Timothy H. Heaton

This course is called Principles of Earth Science II (Historical Geology at most schools) and is the second course in the Earth Science general education laboratory sequence at USD. It is also required of Earth Science majors. ESCI 101 (Physical Geology) is a prerequisite.

Two sections of this course are taught every Spring semester, and a trailer section is taught in the Fall semester of odd years only. Laboratory sections accompany the course, and each student must register for one of the weekly labs.

Active content for this course has moved to D2L, but some resources are still listed below.

Class Handouts
Chapter Outlines (Download in Word)
Precambrian-Cambrian stages of life
History of life in the oceans
Key animal phyla of the oceans
Blank Geologic Time Scale (in Word)
Other Links
Geologic Timeline
Understanding Evolution
Burgess Shale fossils
Events of the Geologic Periods
Paleogeographic Maps


Dr. Heaton's Practice Exams

Chapter 1 Chapter 2 Chapter 3
Chapter 4 Chapter 5 Chapter 6
Chapter 7 Chapter 8 Chapter 9
Chapter 10 Chapter 11 Chapter 12
Chapter 13 Chapter 14 Chapter 15
Chapter 16 Chapter 17 Final Exam

Practice Geologic Time Scale
Practice Periodic Table
Structure Questions
Fossil Questions
Other Earth Science Exams

Here are the absolute ages you
need to know for the time scale
(in addition to the Eons, Eras,
Periods, and Epochs):
------   0 years ago   ------
Cenozoic Era
------ 65 million years ago ------
Mesozoic Era
------ 251 million years ago ------
Paleozoic Era
------ 542 million years ago ------
Proterozoic Eon
------ 2.5 billion years ago ------
Archean Eon
------ 4.0 billion years ago ------
Hadean Eon
------ 4.5 billion years ago ------


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Timothy H. Heaton: E-mail, Home page, Phone (605) 677-6122, FAX (605) 677-6121