Wednesday January 9, 2013

1. WednesdayJanuary 9, 2013 (Common Fossils; Begin Lab - Fossils)

2. The Launch Pad Wednesday, 1/9/13 List four examples of indirect fossil evidence.

3. The Launch Pad Wednesday, 1/9/13 • Index fossils work on the premise that: • although different sediments may look different depending on the conditions under which they were laid down, they may include the remains of the same species of fossil.

4. Announcements Happy Surveyor 7 Day! On Jan. 9, 1968, the Surveyor 7 space probe made a soft landing on the moon, marking the end of the American series of unmanned explorations of the lunar surface.

5. Announcements I will be available after school today until 4:45.

7. Recent Events in Science Giant Fossil Predator Provides Insights Into the Rise of Modern Marine Ecosystem Structures Read All About It! An international team of scientists has described a fossil marine predator measuring 8.6 meters in length (about 28 feet) recovered from the Nevada desert in 2010 as representing the first top predator in marine food chains feeding on prey similar to its own size. The 244-million-year-old fossil, named Thalattoarchon saurophagis (lizard-eating sovereign of the sea) is an early representative of the ichthyosaurs, a group of marine reptiles that lived at the same time as dinosaurs and roamed the oceans for 160 million years. It had a massive skull and jaws armed with large teeth with cutting edges used to seize and slice through other marine reptiles in the Triassic seas. Because it was a meta-predator, capable of feeding on animals with bodies similar in size to its own, Thalattoarchon was comparable to modern orca whales. www.sciencedaily.com/releases/2013/01/130107151422.htm

8. Common Fossils fossilized shark tooth

9. Common Fossils petrified wood

10. Common Fossils trilobite

11. Common Fossils crinoid stem

12. Common Fossils ammonite

13. Common Fossils brachiopod

14. Common Fossils gastropod

15. Common Fossils fossilized dinosaur bone

16. Begin Lab - Fossils