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Dinosaurs > Dinosaurs Intro / Discoveries > Flashcards

Dinosaurs Intro / Discoveries Flashcards

1
Q

In what era did dinosaurs exist on Earth?

A

The Mesozoic era

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2
Q

What period did dinosaurs originate?

A

Triassic period

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3
Q

What period did dinosaurs flourish?

A

Cretaceous period

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4
Q

What period did the dinosaurs die out?

A

Cretaceous and Palaeogene boundary (66 mill years ago)

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5
Q

What organelles led to the discovery of dinosaur feathers?

A

Melanosomes

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6
Q

Describe melanosomes

A

Tiny hollows inside hairs or feathers that contain melanin

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7
Q

Which dinosaur was the first to have its feathers tested for colour?

A

Sinosauropteryx

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8
Q

What colour were sinosauropteryx’s feathers?

A

Ginger

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9
Q

What colour were sinosauropteryx’s tail feathers?

A

White and ginger stripes

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10
Q

What did Sir Ernest Rutherford do?

A

Physicist

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11
Q

What university did Sir Ernest Rutherford work?

A

University of Cambridge

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12
Q

What did Sir Ernest Rutherford discover?

A

Radioactive half-life

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13
Q

Who made the discovery of Radioactive half-life?

A

Sir Ernest Rutherford

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14
Q

Where was Sir Ernest Rutherford born?

A

New Zealand

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15
Q

What are coprolites?

A

Fossil faeces

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16
Q

Who said the following “All Science is either physics or stamp collecting”?

A

Sir Ernest Rutherford

17
Q

What does phylogeny mean?

A

The evolutionary history of organisms

18
Q

What is the theory of “extant phylogenetic bracket”?

A

Close relatives in the evolutionary tree share traits e.g. details in the eye ball, leg muscles etc - then dinosaurs can share with their close relatives in the tree

19
Q

Who came up with the “extant phylogenetic bracket”?

A

Larry Whitmer

20
Q

What does Larry Whitmer do?

A

American Palaeontologist

21
Q

What colour melanin do sausage shaped melanosomes produce?

A

Black and brown

22
Q

What colour melanin do ball shaped melanosomes produce?

A

Ginger

23
Q

Melanosomes of what shape produce black / brown melanin?

A

Sausage shaped melanosomes

24
Q

Melanosomes of what shape produce ginger melanin?

A

Ball shaped melanosomes

25
Q

What is the term for fossil faeces?

A

Coprolites

25
Q

Close relatives in the evolutionary tree share traits e.g. details in the eye ball, leg muscles etc - then dinosaurs can share with their close relatives in the tree. What is the term for this theory?

A

Extant phylogenetic bracket

26
Q
A
27
Q
A

Dinosaurs (2 decks)

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