Fossil Identification and Classification

What classification system is used to categorize fossils similar to living organisms?

• Mendelian system

• Linnaean system

• Darwinian system

• Newtonian system

Which period is sometimes referred to as the 'Age of Trilobites'?

• Jurassic

• Cambrian

• Triassic

• Permian

What is a distinguishing feature of trilobites?

• They have a lacy structure for feeding.

• They have a muscular foot.

• They have radial symmetry.

• They have three characteristic body parts.

How do brachiopods differ from bivalve mollusks?

• Brachiopods have a muscular foot.

• Brachiopods have two identical shells.

• Brachiopods are not marine organisms.

• Brachiopods have one shell larger than the other.

What is the primary feeding mechanism of brachiopods?

• Photosynthesis

• Filter feeding with a lacy structure

• Using a muscular foot to dig for food

• Hunting small fish

What symmetry is characteristic of echinoderms?

• Asymmetry

• Fivefold symmetry

• Radial symmetry

• Bilateral symmetry

What are crinoids known for in the fossil record?

• Being the first land plants

• Having a muscular foot

• Forming vast undersea meadows

• Being the ancestors of modern fish

Which group of mollusks is known for having coiled shells?

• Brachiopods

• Cephalopods

• Gastropod mollusks

• Bivalve mollusks

What role do reef-building organisms play in the fossil record?

• They are the first organisms to colonize land.

• They are the primary source of oil.

• They contribute to the formation of limestone.

• They are the ancestors of modern birds.

Which type of coral is known for having bilateral symmetry?

• Scleractinian corals

• Rugose corals

• Tabulate corals

• Octocorals