How did the study of fossils provide support for the ideas behind the existence of Pangaea?

The distribution of similar fossils across continents, such as fossils of the ancient reptile Mesosaurus in both South America and Africa, supports the idea that these landmasses were once connected before drifting apart , reinforcing our understanding of Earth's geological history.

Was Antarctica part of Pangea?

Approximately 250 million years ago during the Triassic period, Antarctica was part of the supercontinent of Pangea . During this time, all of the continents were assembled into a large and continuous land mass that was free of polar ice and all of the oceans were combined into one large oceanic mass (Panthalassa).

Who figured out Pangea?

In 1912, German scientist Alfred Wegener proposed that Earth's continents once formed a single, giant landmass, called Pangaea. Over millions of years, Pangaea slowly broke apart, eventually forming the continents as they are today.

What four pieces of evidence from your textbook and the building Pangea gizmo that support the continental drift hypothesis?

It turns out that Wegener had 4 pieces of evidence that he claimed supported his idea: 1) The continents looked like they fit together like pieces of a puzzle; 2) There were matching fossils on continents that were separated by oceans; 3) There were matching mountain ranges on continents that were separated by oceans; ...

Has Antarctica ever been ice free?

Antarctica hasn't always been covered with ice – the continent lay over the south pole without freezing over for almost 100 million years. Then, about 34 million years ago, a dramatic shift in climate happened at the boundary between the Eocene and Oligocene epochs.

Is Antarctica still drifting?

Antarctica was once grouped as part of the supercontinent Gondwana with Australia and India. But about 100 million years ago, Antarctica broke apart to its current frigid location in the South Pole. “ It's estimated that the Antarctica major plate moves about 1 cm per year [1].

What lived on Antarctica before it froze?

Earth's southernmost continent boasted an abundance of plant and animal life before becoming a frozen wasteland, with numerous dinosaurs previously identified along with flora including conifers, ferns and flowering plants .

Who proposed the idea that all of the continents were once together?

The theory of continental drift is most associated with the scientist Alfred Wegener . In the early 20th century, Wegener published a paper explaining his theory that the continental landmasses were “drifting” across the Earth, sometimes plowing through oceans and into each other.

Who hypothesized that the continents were once connected?

In 1912 Alfred Wegener (1880-1930) noticed the same thing and proposed that the continents were once compressed into a single protocontinent which he called Pangaea (meaning "all lands"), and over time they have drifted apart into their current distribution.

Why scientists think that the two continents were once joined?

One type of evidence that strongly supported the Theory of Continental Drift is the fossil record. Scientists have found fossils of similar types of plants and animals in rocks of similar age . These rocks were on the shores of different continents. This suggests that the continents were once joined.

Who is the German scientist that suggested that all continents were once connected together?

But it was a German scientist named Alfred Wegener who developed a robust hypothesis of continental drift over 300 years later. Born in 1880, Wegener earned his Ph. D.

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The circular arrows inside the earth's mantle represent what type of motion, that drives all plate movement?

The circular arrows inside the earth's mantle represent what type of motion, that drives all plate movement?

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Who came up with the idea that all the continents were once joined together gizmo? ›

Why scientists think that the two continents were once joined? ›