which of the following is true about the precambrian era? common precambrian fossils include dinosaurs…

which of the following is true about the precambrian era? common precambrian fossils include dinosaurs. known as \age of early life\ occurred about 50 million years ago known for mammoths and sharks
Answer
Brief Explanations:
The Precambrian Era is known as the "Age of Early Life". Dinosaurs lived much later, not in the Precambrian. The Precambrian ended about 541 million years ago, not 50 million years ago. Mammoths and sharks also emerged long after the Precambrian.
Answer:
Known as "Age of Early Life"