Geological timescale MCQs

1. The age of earth is

• 5 billion years ago
• 6 billion years ago
• 8 billion years ago
• 8 billion years ago

2. Life is years old

• 4056 million
• 3056 million
• 4058 million
• 3058 million

3. History of earth is divided into units

• 4
• 5
• 6
• 7

4. Arrangement of eons, eras, periods and epoch according to their ages is called

• Paleontological map
• Geological map
• Geological timescale
• Paleontological time scale

5. Entire age is divided into                     large units (eon)

• 2
• 6
• 11
• 7

6. Eon last for 4056 million years which account for about 87% of life

• Cryptozoic
• Phanerozoic
• Paleozoic
• mesozoic

7. Phanerozoic eon account for life of earth

• 87%
• 55%
• 34%
• 13%

8. Cryptozoic eon is also named as

• Pre Cambrian
• Post Cambrian
• Cambrian
• None

9. During cryptozoic era life was present in the form of

• Organic compound
• Micro organisms
• Invertebrates
• Early fishes

10. Cryptozoic is divided into eras

• 2
• 3
• 4
• 5

11. Cryptozoic last from to                  million years.

• 4056 to 4065
• 4056 to 4070
• 4065 to 4076
• 4065 to 4075

12. During cryptozoic the rocks were mainly

• Sedimentary
• Igneous
• Metamorphic
• None

13. Fossils are

• Present
• Absent
• Buried
• Found

14. First fossil plant appear during eon

• Cryptozoic
• Phanerozoic
• Proterozoic
• Palaeozoic

15. What is 2^nd name of Phanerozoic eon?

• Premium
• Post Cambrian
• Pre Cambrian
• Pre urnal

16. What is Paleozoic life?

• Age of invertebrates
• Age of fishes
• Age of reptiles
• Age of birds

17. How many periods include in Paleozoic?

• 7
• 8
• 6
• 10

18. What is Mesozoic life?

• Age of reptiles
• Age of mammals
• Age of amphibians
• Age of birds

19. What is Cenozoic life?

• Age of mammals
• Age of flowering plants
• Age of birds
• Both a and b

20. Which organism firstly moves to the side of land?

• Snake
• Scorpion
• Lizard
• Crocodile

21. Cambrian period is period

• Oldest
• Mid
• 2^nd last
• Newest

22. Trilobites have

• Head
• Thorax
• Abdomen
• All

23. Cambrian period also called

• Golden age of birds
• Golden age of trilobites
• Golden age of snakes
• Golden age of sponges

24. Ostracoderm is

• Fish
• Reptile
• Amphibian
• Frog

25. Armord plates used for

• Capturing prey
• Crushing of food
• Absorption of water
• None

26. In fishes bony plates present near

• Teeth
• Fins
• Tail
• Head

27. Devonian period is

• Age of frogs
• Age of reptiles
• Age of fishes
• Age of snakes

28. First amphibian is

• Frog
• Stegocephalian
• Ostracoderm
• Cockroach

29. Flowerless plants are

• Horsetails
• Ferns
• Both a and b
• None

30. Age of cockroaches is

• Carboniferous
• Jurassic
• Cambrian
• None

31. Seed ferns are called

• Flowerless
• Angiosperm
• Gymnosperm
• Xylem

32. Climate change in

• Carboniferous
• Premium
• Jurassic
• Triassic

33. Amphibian are disappear mostly in

• Premium period
• Cretaceous period
• Mesozoic
• None

34. How many types of reptiles made in premium period

• 3
• 4
• 5
• 7

35. Mesozoic era is also called age of

• Birds
• Mammals
• Reptiles
• Amphibians

36. Archaeopteryx fossils was found in

• America
• Germany
• Africa
• Japan

37. Mammalian fossils are rare in

• Permian period
• Jurassic period
• Silurian period
• Cambrian period

38. In mammalian fossils the dental formula was

• 3213/3213
• 2143/2143
• 3413/3413
• 3321/3321

39. The fossils of archaeopteryx was in size

• Dinosaurs
• Limbers
• Lion
• Crow

40. Canines were larger in

• Docodonta
• Briconodonta
• Triconodonta
• None of these

41. Triconodonta had molar with

• No cusps
• Three cusps
• Four cusps
• Two cusps

42. Molars are also called

• Post grinders
• Lower grinders
• Pre grinders
• Both a and b

43. Animals with one type of teeth are

• Homodonts
• Heterodonts
• Tricodonts
• None

44. In Mesozoic era the mammalian fossils are in habit

• Diurnal
• Nocturnal
• Seasonal
• None

45. All type of habitats were occupied by dinosaurs

• Archaeopteryx
• Dinosaurs
• Goat
• Trichonta

46. Deciduous teeth consist of

• Incisors, canines
• Molar, canine
• Milk molar
• Both a and b

47. Modern echinoderm and crinoids first appeared in

• Jurassic
• Triassic
• Silarian
• Cambrian

48. Horned dinosaurs also called

• Stegosaurs
• Brontosaurs
• Triceratops
• Pterosaurs

49. In Mesozoic era the dinosaurs are

• Cold blooded
• Thermoregulatory
• Warm blooded
• Both a and b

50. A great specie of insect are known in

• Cambrian
• Permian
• Triassic
• Devonian

51. The Mesozoic era can began about

• 270mya
• 250mya
• 225mya
• 240mya

52. The climate of Mesozoic era is

• Hot
• Dry
• cold
• Moderate

53. In this period the gymnosperm were

• Decrease
• Extinct
• Increase
• None of these

54. One of the most important feature of this Mesozoic period is appearance of

• Dinosaurs
• Teleost
• Bony fishes
• Both b and c

55. The last and most recent of the geological periods is

• Paleozoic
• Mesozoic
• Cenozoic
• Pleistocene

56. Kainos mean

• New
• Old
• Previous
• Next

57. Cenozoic is called as

• Age of mammals
• Age of birds
• Age of flowering plants
• All of these

58. Cenozoic era is covering the period from to present

• 5Ma
• 5Ma
• 5 Ma
• 5Ma

59. The Cenozoic is divided into periods

• Two
• Three
• Four
• Five

60. Cenozoic include

• Paleogene
• Neogene
• Quaternary
• All of these

61. Paleogene last from

• 5 to 23.03myr
• 3 to 23.03myr
• 05 to 23.03myr
• 03 to 23.3myr

62. Paleogene is subdivided into

• 2
• 3
• 4
• 5

63. Paleogene and Neogene are relatively new terms that replace the term

• Primary
• Tertiary
• Quaternary
• None

64. Neogene period last from

• 3 to 2.06 myr
• 3 to 2.6 myr
• 03 to 2.06myr
• 03 to 2.6 myr

65. which one is correct for Paleogene

• Paleocene, Oligocene, Eocene
• Miocene, Eocene
• Pliocene, Miocene, Eocene
• Paleocene ,Oligocene, Miocene

66. the age of savannas

• Cenozoic
• Mesozoic
• Paleozoic
• Cryptozoic

67. is dominated by ice ages.

• Pleistocene
• Paleozoic
• Cryptozoic
• None

68. The last of ice sheets disappeared about years ago.

• 1000
• 10,000
• 2000
• 20,000