Trilobite Fossil Quiz

What does the name 'Trilobite' mean?

• Three Tails

• Three Eyes

• Three Segments

• Three Lobes

To which phylum do trilobites belong?

• Echinodermata

• Chordata

• Arthropoda

• Mollusca

How many species of trilobites are estimated to exist?

• Over 2,000

• Over 20,000

• Over 200,000

• Over 2,000,000

During which geological period did trilobites first appear?

• Devonian

• Ordovician

• Silurian

• Cambrian

Tags

NGSS.MS-ESS1-4

What is the largest known trilobite species?

• Acanthopleurella stipulae

• Isotelus rex

• Elrathia kingii

• Triarthrus eatoni

What type of eyes did trilobites have?

• Simple eyes

• Compound eyes

• Single lens eyes

• No eyes

Which of the following is NOT a trilobite order?

• Agnostida

• Phacopida

• Ptychopariida

• Gastropoda

What is a common feature of trilobite fossils?

• Soft tissue preservation

• Molted exoskeletons

• Complete skeletons

• Preserved internal organs

Which of the following locations is known for trilobite fossils?

• Antarctica

• Sahara Desert

• Utah, USA

• Amazon Rainforest

What is the smallest known trilobite species?

• Isotelus rex

• Acanthopleurella stipulae

• Elrathia kingii

• Triarthrus eatoni