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Wednesday January 9, 2013 (Common Fossils; Begin Lab - Fossils)
WednesdayJanuary 9, 2013
(Common Fossils; Begin Lab - Fossils)
The Launch PadWednesday, 1/9/13
List four examples of indirect fossil evidence.
Tracks
Burrows
CoprolitesGastroliths
The Launch PadWednesday, 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.
AnnouncementsHappy
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.
AnnouncementsI will be available after
school today until 4:45.
Assignment Currently Open
Summative or
Formative?Date Issued Date Due Date Into
GradeSpeed Final Day
Quiz 14 S4 12/12 12/12 12/19 1/16
WS – What is a Fossil?
CrosswordF1 1/8 1/9 1/11
Recent Events in ScienceGiant Fossil Predator Provides Insights Into the Rise of
Modern Marine Ecosystem Structures
Read All About It!www.sciencedaily.com/releases/201
3/01/130107151422.htm
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.
Common Fossilsfossilized
shark tooth
Common Fossilspetrified
wood
Common Fossilstrilobite
Common Fossilscrinoid stem
Common Fossilsammonite
Common Fossilsbrachiopod
Common Fossilsgastropod
Common Fossilsfossilized dinosaur
bone
Begin Lab - Fossils
