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The Long Arm of the Claw Trivia Quiz

This quiz focuses on a peculiar group of dinosaurs called Therizinosaurids.

A multiple-choice quiz by ElusiveDream. Estimated time: 4 mins.

Author
ElusiveDream

Time
4 mins

Type
Multiple Choice

Quiz #
388,611

Updated
Dec 03 21

# Qns
10

Difficulty
Tough

Avg Score
5 / 10

Plays
151

Last 3 plays: MK240V (8/10), rahonavis (9/10), Johnmcmanners (10/10).

One at a Time - Single Page - Timed Game

Question 1 of 10

1. When did the Therizinosaurids live? Hint

Cretaceous

Triassic

Jurassic

Permian

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Question 2 of 10

2. How long were the claws of Therizinosaurus? Hint

three metres

fifty centimetres

one metre

ten centimetres

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Question 3 of 10

3. Which of these is most likely to have been the diet of Therizinosaurids? Hint

vegetation

meat

fish

rodents

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Question 4 of 10

4. How many known species of Therizinosaurids have been identified at the beginning of the twenty-first century? Hint

seven

two

eleven

five

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Question 5 of 10

5. What does the name Therizinosaurus mean? Hint

scythe lizard

sloth claw

slow lizard

lizard from Nei Mongol

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Question 6 of 10

6. Therizinosaurids had feathers.

True

False

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Question 7 of 10

7. When the fossils of Therizinosaurus were first discovered, they were mistakenly thought to have belonged to which marine animal? Hint

whale

turtle

shark

dolphin

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Question 8 of 10

8. How did Therizinosaurids reproduce? Hint

They laid hard-shelled eggs on land

They gave birth to live young

No one knows

They laid soft-shelled eggs in water

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Question 9 of 10

9. Where was the most complete Therizinosaurid fossil discovered? Hint

USA

Europe

Asia

Africa

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Question 10 of 10

10. On which continent have the most Therizinosaurids been found? Hint

Europe

Asia

Africa

North America

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Quiz Answer Key and Fun Facts

1. When did the Therizinosaurids live?

Answer: Cretaceous

The Therizinosaurids all lived during the Cretaceous period, from the middle of the Early Cretaceous up to the end of the Late Cretaceous.

2. How long were the claws of Therizinosaurus?

Answer: one metre

At one metre long, the claws of Therizinosaurus are the longest of any known animal.

3. Which of these is most likely to have been the diet of Therizinosaurids?

Answer: vegetation

There's a lot of debate on what Therizinosaurids ate. Despite being classed as Theropods (the group to which all carnivorous dinosaurs belonged), many palaeontologists believe Therizinosaurids were herbivores, using their claws to rip branches from trees. Nobody knows for sure, though and there's also been a suggestion that the claws were used for tearing into the nests of ants or termites.

4. How many known species of Therizinosaurids have been identified at the beginning of the twenty-first century?

Answer: eleven

There are eleven known Therizinosaurids: Segnosaurus, Nothronychus, Beipiaosaurus, Neimongosaurus, Therizinosaurus, Enigmosaurus, Alxasaurus, Suzhousaurus, Erlianosaurus, Nanshiungosaurus and Erlikosaurus.

5. What does the name Therizinosaurus mean?

Answer: scythe lizard

A scythe is a type of hand-held implement with a large, curved blade, which is used for cutting grass.

Therizinosaurus was named by Russian palaeontologist, Evgeny Maleev, in 1954. Its name comes from the Greek words 'therizo' meaning "rake" or "cut" and 'sauros' meaning "lizard".

Segnosaurus means "slow lizard", Nothronychus means "sloth claw" and Neimongosaurus means "Lizard from Nei Mongol".

6. Therizinosaurids had feathers.

Answer: True

Some beautifully preserved Therizinosaurid fossils from China have shown that these dinosaurs had feathers, which were probably used for display.

7. When the fossils of Therizinosaurus were first discovered, they were mistakenly thought to have belonged to which marine animal?

Answer: turtle

Therizinosaurus was first discovered in 1948, during a joint Soviet-Mongolian expedition to the Nemegt Formation in south-western Mongolia. The bones were originally thought to have belonged to a giant turtle, hence the species name T. cheloniformis - "turtle-formed".

8. How did Therizinosaurids reproduce?

Answer: They laid hard-shelled eggs on land

It's widely accepted that all dinosaurs laid hard-shelled eggs. In Mongolia, in 2011, palaeontologists discovered a nesting site filled with a total of seventy-five eggs. It's thought the eggs may belong to Therizinosaurus, but we'll probably never know as the eggs don't contain embryos.

9. Where was the most complete Therizinosaurid fossil discovered?

Answer: USA

Discovered by Merle Graffam in Utah, USA, in 2000, the skeleton of Nothronychus consists of hips, tail and ribs as well as parts of the neck, arms, legs and feet. So far, no complete Therizinosaurid skulls have been found.

10. On which continent have the most Therizinosaurids been found?

Answer: Asia

Nothronychus is the only Therizinosaurid to be discovered in North America.

Therizinosaurids discovered in Mongolia: Enigmosaurus, Erlianosaurus, Erlikosaurus, Segnosaurus, Alxasaurus and Therizinosaurus.

Therizinosaurids discovered in China: Nanshiungosaurus, Neimongosaurus, Suzhousaurus and Beipiaosaurus.

Source: Author ElusiveDream

This quiz was reviewed by FunTrivia editor rossian before going online.
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