Life forms in the Precambrian included
A)trilobites.
B)brachiopods.
C)coelacanths.
D)cyanobacteria.

Name: Life forms in the Precambrian included A)trilobites. B)brachiopods. C)coelacanths. D)cyanobacteria.
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Trilobites, brachiopods, and coelacanths first appear in the fossil record during the Paleozoic era, which follows the Precambrian. The dominant life forms during the Precambrian were single-celled organisms such as cyanobacteria, as well as some simple multicellular organisms like sponges.

Life Forms in the Precambrian Included