Introduction to the Geologic Eras the Paleozoic Era

Introduction to the Geologic Eras & the Paleozoic Era Ms. Stottlemyer 6 th Grade Science

How old is planet Earth? The Earth and solar system are about 4. 7 billon years old!

What are some clues on planet Earth that help scientists determine the age of our planet? Coral Growth Bands Tree Rings Fossils and Rocks (Radiometric Dating) Ice layers in glaciers

What is radiometric dating?

The Geologic Timescale

The Geologic Time Scale Scientists examine changes in rock formations to determine different time periods on planet Earth. The geologic time scale examines when different types of plants and animals appeared and disappeared from Earth. Geologic time is broken down into eons, eras, periods, epochs and ages.

Geologic Time Scale Largest Amount of Time Typically only used for the Cenozoic Era Eon Era Period Epoch Smallest Amount of Time Age

Geologic Time Scale Terms EON: Two or more geological eras form an Eon, which is the largest division of geologic time, lasting many hundreds of millions of years. ERA: Two or more geological periods comprise an era, which is hundreds of millions of years in duration. PERIOD: The period is the basic unit of geological time in which a single type of rock system is formed, lasting tens of millions of years. Definitions are from enchantedlearning. com

Geologic Time Scale Terms EPOCH: An epoch is a division of a geologic period; it is the smallest division of geologic time, lasting several million years. AGE: An age is a unit of geological time which is distinguished by some feature (like an Ice Age). An age is shorter than an epoch, usually lasting from a few million years to about a hundred million years. Definitions are from enchantedlearning. com

Geologic Time Scale Terms Diagram Reference: Geisen, M. (2016). History of Life on Earth. In Everything You Need to Ace Science in One Big Fat Notebook (pp. 465). New York, NY: Workman.

Geologic Time Scale Chart

Geologic Time Scale Chart Reference: Geisen, M. (2016). History of Life on Earth. In Everything You Need to Ace Science in One Big Fat Notebook (pp. 466). New York, NY: Workman.

References [Animation]. Retrieved from http: //www. animated-gifs. eu/categorysciences/scientists-2/0005. gif [Chart]. Retrieved from http: //cdn. zmescience. com/wp-content/uploads/2013/09/ Paleozoic-Era-latest. jpg [Chart]. Retrieved from https: //marianuniversityscienceblog. files. wordpress. com /2010/02/geo-eras. png [Diagram]. Retrieved from http: //blogs. discovermagazine. com /notrocketscience/files/2011/12/Anomalocaris. jpg [Diagram]. Retrieved from https: //dr 282 zn 36 sxxg. cloudfront. net /datastreams/f-d%3 A 3303 ad 17 da 93 af 9369172 ee 61749 f 6 bae 713482966 a 16 e 30 cb 18 c 6 ca%2 BIMAGE. 1 [Diagram]. Retrieved from https: //sites. google. com/site/earthscience 8 a/_/rsrc /1468891637445/home/earth-s-history/Screen%20 Shot%202012 -10 -27%20 at%209. 04. 44%20 PM. png [Diagram]. Retrieved from http: //slideplayer. com/slide/1588662/5/images/11/Radiome tric+Dating. jpg [Image]. Retrieved from http: //1. bp. blogspot. com/g. Mzm. Cl. Oq 2 TQ/Viz 6 Yt. Q 1 Lq. I/AAAAAKA/p. NCo. X 3 Nb. Iu 8/s 1600/lifeline 1. jpg [Image]. Retrieved from http: //chandra. harvard. edu/graphics/resources/illustrations/ solsys/solarsys_poster. jpg [Image]. Retrieved from https: //c 1. staticflickr. com/1/240 /449112400_4 d 39 f 21 c 9 c. jpg

References [Image]. Retrieved from https: //image. slidesharecdn. com/2 -siluriandevonian-140427140800 -phpapp 01/95/siluriandevonian-periods-6638. jpg? cb=1454618827 [Image]. Retrieved from http: //p 4 emmacgts. weebly. com/uploads /4/3/5/8/43582269/2038155_orig. png [Image]. Retrieved from https: //t 4. ftcdn. net/jpg/ 01/07/19/91/240_F_107199153_xf 4 A 2 i 1 Ly 16 48 D 1 Uk. Inp 2 Eioah. WWs. QNf. jpg [Image]. Retrieved from http: //t 12. deviantart. net/d. BDl. P 3 fj. Yk. Y-z. UII--Gl. Vq 3 C 6 To=/fit in/700 x 350/filters: fixed_height(100, 100): origin()/pre 09/dfc 2/th/pre/i/2012/220/c/d/paleozoi c_fish__contest_inside___by_dragon_frog-d 5 ae 54 z. png [Image]. Retrieved from https: //upload. wikimedia. org/wikipedia/commons/ thumb/c/cb/Pangaea_continents. svg/869 px-Pangaea_continents. svg. png [Photograph]. Retrieved from http: //1. bp. blogspot. com/-Lq. TBh 2 rqxg/Th. FVh. Vgx 8 TI/AAAAAG 8/Vh. Mp 5 o. Po 6 Ao/s 1600/fossilrock. JPG [Photograph]. Retrieved from http: //cascade. uoregon. edu/ fall 2009/photos/glacier 2. jpg [Photograph]. Retrieved from https: //geomaps. wr. usgs. gov/ parks/gtime [Photograph]. Retrieved from http: //uqnews. drupal. uq. edu. au/filething/get/78745/Coral. jpg [Photograph]. Retrieved from http: //web. utk. edu/~grissino/Site/galleries/treering-gallery 2/small%20 red%20 oak. jpg ee 61749 f 6 bae 713482966 a 16 e 30 cb 18 c 6 ca%2 BIMAGE. 1

References Bagley, M. (2014, February 22). Devonian Period: climate, animals & plants. Retrieved from https: //www. livescience. com/43596 -devonian-period. html Bagley, M. (2016, May 27). Cambrian Period: facts & information. Retrieved from https: //www. livescience. com/28098 -cambrian-period. html Enchanted. Learning. (n. d. ). Geologic Time Periods: Zoom. Dinosaurs. com. Retrieved from http: //www. enchantedlearning. com/subjects/dinosaurs/glossary/Geologictimeperiods. shtml Enchanted. Learning. (n. d. ). Zoom Dinosaurs Enchanted. Learning. com. Retrieved from http: //www. enchantedlearning. com/subjects /dinosaurs/ Geisen, M. (2016). History of Life on Earth. In Everything You Need to Ace Science in One Big Fat Notebook (pp. 465 -474). New York, NY: Workman. Walking Trilobite animation by S. M. Gon III [Animation]. (2000). Retrieved from http: //www. trilobites. info/trilobite. htm