Fossils and Earths Geologic History PRESENTED BY: MARK A. VAN
HECKE ANCHOR BAY HIGH SCHOOL NEW BALTIMORE, MI Slide 2 ALL GEOLOGIC
TIME IS DIVIDED INTO TWO EONS PHANEROZOIC FROM 570 MILLION YEARS
AGO TO THE PRESENT PRECAMBRIAN EON FROM 3.4 BILLION YEARS AGO TO
570 MILLION YEARS AGO Slide 3 EACH EON IS DIVIDED INTO PERIODS ONLY
THE PHANEROZOIC IS DIVIDED INTO PERIODS, THE THREE YOU NEED TO KNOW
ARE PALEOZOIC MESOZOIC CENOZOIC Slide 4 EACH OF THE ERAS IN TURN IS
DIVIDED INTO PERIODS Slide 5 PALEOZOIC ERA CAMBRIAN ORDOVICIAN
SILURIAN DEVONIAN MISSISSIPIAN PERMIAN Slide 6 MESOZOIC ERA
TRIASSIC JURASSIC CRETACEOUS Slide 7 CENOZOIC ERA TERTIARY
QUATERNARY Slide 8 PERIODS IN TURN ARE DIVIDED INTO EPOCHS Slide 9
THE PERIODS OF THE PALEOZOIC AND MESOZOIC ARE SIMPLY DIVIDED INTO
EARLY, MIDDLE AND LATE EPOCHS Slide 10 EPOCHS OF THE CENOZOIC ERA
ARE GIVEN DISTINCTIVE NAMES IN EACH OF THE PERIODS Slide 11
TERTIARY PERIOD PALEOCENE EOCENE OLIGOCENE MIOCENE PLIOCENE Slide
12 QUATERNARY PERIOD PLEISTOCENE HOLOCENE (PRESENT) Slide 13 MOST
GEOLOGISTS THINK THAT THROUGHOUT ITS HISTORY EARTHS CLIMATE HAS
SEE- SAWED BETWEEN A HOT HOUSE AND AN ICE BOX CLIMATE Slide 14
PreCambrian Eon 570 million-3.4 billion years ago Slide 15 Slide 16
PALEOZOIC ERA 570 MILLION YEARS AGO- 225 MILLION YEARS AGO Slide 17
CAMBRIAN PERIOD 570-500 MILLION YEARS AGO Slide 18 Slide 19 Slide
20 ORDOVICIAN PERIOD 430-500 MILLION YEARS AGO Slide 21 Slide 22
Slide 23 SILURIAN PERIOD 395-430 MILLION YEARS AGO Slide 24 Slide
25 Slide 26 DEVONIAN PERIOD 345-395 MILLION YEARS AGO Slide 27
Slide 28 Slide 29 Slide 30 Slide 31 THE MISSISSIPPIAN 325-345
MILLION YEARS AGO AND PENNSYLVANIAN PERIODS 280-325 MILLION YEARS
AGO MAY BE GROUPED TOGETHER Slide 32 AS THE CARBONIFEROUS PERIOD
Slide 33 Slide 34 Slide 35 Slide 36 Slide 37 PERMIAN PERIOD 225-280
MILLION YEARS AGO Slide 38 Slide 39 Slide 40 MESOZOIC ERA Slide 41
TRIASSIC PERIOD 190-225 MILLION YEARS AGO Slide 42 Slide 43 Slide
44 Slide 45 Slide 46 JURASSIC PERIOD 136-190 MILLION YEARS AGO
Slide 47 Slide 48 Slide 49 Slide 50 Slide 51 CRETACEOUS PERIOD
65-136 MILLION YEARS AGO Slide 52 Slide 53 Slide 54 CENOZOIC ERA
Slide 55 TERTIARY PERIOD Slide 56 PALEOCENE EPOCH 54-65 MILLION
YEARS AGO Slide 57 Slide 58 EOCENE EPOCH 37.5-54 MILLION YEARS AGO
Slide 59 Slide 60 OLIGOCENE EPOCH 26 37.5 MILLION Slide 61 Slide 62
MIOCENE EPOCH 5-26 MILLION YEARS AGO Slide 63 Slide 64 Slide 65
QUATERNARY PERIOD Slide 66 PLEISTOCENE EPOCH 11,000-1.8 MILLION
YEARS AGO Slide 67 Slide 68 HOLOCENE EPOCH 11,000 YEARS AGO-
PRESENT Slide 69
