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Geologic Time Scales and Fossils

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This Is the Best Dinosaur Fossil of Its Kind Ever Found. This article appears in the June 2017 issue of National Geographic magazine.

This Is the Best Dinosaur Fossil of Its Kind Ever Found

On the afternoon of March 21, 2011, a heavy-equipment operator named Shawn Funk was carving his way through the earth, unaware that he would soon meet a dragon. That Monday had started like any other at the Millennium Mine, a vast pit some 17 miles north of Fort McMurray, Alberta, operated by energy company Suncor. Hour after hour Funk’s towering excavator gobbled its way down to sands laced with bitumen—the transmogrified remains of marine plants and creatures that lived and died more than 110 million years ago. It was the only ancient life he regularly saw. In 12 years of digging he had stumbled across fossilized wood and the occasional petrified tree stump, but never the remains of an animal—and certainly no dinosaurs.

But around 1:30, Funk’s bucket clipped something much harder than the surrounding rock. “Right away, Mike was like, ‘We gotta get this checked out,’ ” Funk said in a 2011 interview. The Story of the Animal Kingdom. History, Travel, Arts, Science, People, Places. Evol.Page to Print: Clado Background Information. TRANSITIONAL FOSSILS BACKGROUND INFORMATION Taken largely from the Talk.Origins Archive web site, and is used here with the kind permission of its author, Kathleen Hunt.

Evol.Page to Print: Clado Background Information

According to the theory of evolution, the "descent with modification" road to humans (or any other group, for that matter) is paved with a sequence of transitional fossils, spaced out in a time sequence reflected in the ages of the fossils found. Since fossils of soft-bodied animals are relatively rare (they don't fossilize easily), the record is rather spotty prior to the first appearance of vertebrates (in the form of jawless fishes), so this lesson will focus only on the fossil record of vertebrates As we study the growing number of fossils, we find that they usually fit nicely into one group or another, and most of those groups clearly show gradual change over time, even phasing into new and different groups along the way, adding changes upon changes.

A. WHAT IS A TRANSITIONAL FOSSIL? 1. 2. 3. 4. 5. B. 2. 3. 4. C. Lesson: Patterns in Time. ENGAGE: Fossils over time Introduce students to fossils (this is one approach; see below for an alternative approach): Have some real fossils (and/or plastic copies) of a variety of organisms for students to handle and share, and/or show pictures of fossils; a few models of some prehistoric creatures, like dinosaurs and other early reptiles, would also make it fun.

Lesson: Patterns in Time

Ask: "If you found these fossils in some rocks, what questions would you ask? [list some of the questions asked, e.g., "what was it? " "when did it live? " "how old is it? "] DETERMINING AGE OF ROCKS AND FOSSILS. THE AGE of fossils intrigues almost everyone.

DETERMINING AGE OF ROCKS AND FOSSILS

Students not only want to know how old a fossil is, but they want to know how that age was determined. Some very straightforward principles are used to determine the age of fossils. Students should be able to understand the principles and have that as a background so that age determinations by paleontologists and geologists don't seem like black magic. There are two types of age determinations. Geologists in the late 18th and early 19th century studied rock layers and the fossils in them to determine relative age.

First Dinosaur Tail Found Preserved in Amber. Watch: Pictures of the First Dinosaur Tail Ever Preserved in Amber While individual dinosaur-era feathers have been found in amber, and evidence for feathered dinosaurs is captured in fossil impressions, this is the first time that scientists are able to clearly associate well-preserved feathers with a dinosaur, and in turn gain a better understanding of the evolution and structure of dinosaur feathers.

First Dinosaur Tail Found Preserved in Amber

The research, led by paleontologist Lida Xing of the China University of Geosciences, was funded in part by the National Geographic Society's Expeditions Council. The semitranslucent mid-Cretaceous amber sample, roughly the size and shape of a dried apricot, captures one of the earliest moments of differentiation between the feathers of birds of flight and the feathers of dinosaurs. (Learn more about the evolutionary relationship between dinosaurs and birds.) Feathered, but Could It Fly? Maybe we can find a complete dinosaur. Evolution Evidence EvolutionEvidence.org: A New Method for Teaching Evolution Evidence. International team of scientists launches fossil database. Have you ever wondered exactly when a certain group of plants or animals first evolved?

International team of scientists launches fossil database

This week a groundbreaking new resource for scientists will go live, and it is designed to help answer just those kinds of questions. The Fossil Calibration Database, a free, open-access resource that stores carefully vetted fossil data, is the result of years of work from a worldwide team led by Dr. ENSI/SENSI Lesson List: Evolution. Lesson: Patterns in Time. Death of Mr. Spud. Rare Dinosaur-Era Bird Wings Found Trapped in Amber. Two tiny wings entombed in amber reveal that plumage (the layering, patterning, coloring, and arrangement of feathers) seen in birds today already existed in at least some of their predecessors nearly a hundred million years ago.

Rare Dinosaur-Era Bird Wings Found Trapped in Amber

A study of the mummified wings, published in the June 28 issue of Nature Communications and funded in part by the National Geographic Society's Expeditions Council, indicated they most likely belonged to enantiornithes , a group of avian dinosaurs that became extinct at the end of the Cretaceous period.

(Read more about the evolution from dinosaurs to modern birds.) 'Mind-Blowingly Cool' While the fact that many, if not nearly all, dinosaurs were feathered has been generally accepted since the 1990s, our knowledge of prehistoric plumage until now has come from feather imprints in carbonized compression fossils and individual feathers fossilized in amber. (See dinosaurs in their feathered glory.) Familiar Feathers A Bountiful Fossil Source in a Troubled Area.

Geologic time 5e lesson mattox. Prehistoric Paradise final project assignment and rubric. Prehistoric Paradise final project assignment and rubric. Delta Education FOSS Middle School Complete Courses - FOSS Middle School Second Edition Earth History. Grades 6 - 8 The revised FOSS Earth History course draws from the original course's rich, active-learning investigations to develop an understanding of Earth processes, then delves in far greater depth into the rock cycle, human interactions with natural resources, and technology that supports the geosciences.

Delta Education FOSS Middle School Complete Courses - FOSS Middle School Second Edition Earth History

Teaching_strategies. Natural Hazards• ELI Natural Hazards category Plate tectonicsPlate tectonics - whole concept:-• Partial melting - simple process, huge global impact (ELI+)• Partial melting model and real rock (ELI+)• Plate riding (ELI+)• Plate tectonics through the window (ELI+) Evidence and explanation for the theory:-• Continental jigsaw puzzle (ELI+)• Earth time jigsaw puzzle• Geobattleships (ELI+)• Wegener’s ‘Continental drift’ meets Wilson’s ‘Plate tectonics’ (ELI+)• Did the continents move for you?

Teaching_strategies

Explorations Through Time. Fossil%20Fill-AIMS.pdf. TheEarthTimelineToiletPaperLesson.pdf. Plate Tectonics Fossils 5E lesson. People of the Bog.