The most common Precambrian fossils are ________, layered mounds of calcium carbonate.
A) prokaryotes
B) chert
C) trilobites
D) stromatolites
E) none of these

Question

Quizplus · Accepted Answer

Stromatolites are the most common Precambrian fossils and are layered mounds of calcium carbonate created by the activities of cyanobacteria (prokaryotes). Chert is a type of sedimentary rock commonly found in Precambrian formations, but it is not a fossil. Trilobites are a type of arthropod that evolved during the Cambrian period, which followed the Precambrian.

The Most Common Precambrian Fossils Are ________, Layered Mounds of Calcium