The most common fossils of marine multicellular animals from the Lower Cambrian are
A) an extinct group of arthropods, the trilobites.
B) soft-bodied animals, similar to marine worms, jellyfishes and anemones.
C) stalked echinoderms called crinoids.
D) shelled molluscs called ammonoids.
E) radiolarians, with a skeleton of silica.

Question

Quizplus · Accepted Answer

Trilobites are indeed the most common fossils of marine multicellular animals from the Lower Cambrian period, representing an extinct group of arthropods that were highly diverse and abundant in ancient marine environments.

The Most Common Fossils of Marine Multicellular Animals from the Lower