Photograph by Joel Sartore, National Geographic Photo Ark The earliest multicelled animals that survived the Precambrian fall into three main categories. The simplest of these soft-bodied ...

Paleontologists now know that the Precambrian actually did swarm with ... at least not in the conventional sense. An organism can leave behind a visible part of its body -- a skull, a shell ...

So what exactly were these highly diverse Precambrian creatures? Plants, animals, or of another kingdom entirely? Nearly all scientists today agree that they were soft-bodied marine-dwelling animals.

These primordial lifeforms, slimy, single-cell organisms that would “wiggle ... published in the journal Precambrian Research. Cardiff University’s professor Ernest Chi declared to BBC ...

"Animals, plants, seaweed, and foraminifera are all eukaryotes. We were interested in studying this foraminifera because it thrives in a very similar environment to Earth during the Precambrian ...

Earth formed and oxygen levels rose in the foundational years of the Precambrian. The productive Paleozoic era gave rise to hard-shelled organisms, vertebrates, amphibians, and reptiles.

The oldest of these trace fossils yet found are 1.8 billion years old, about three times older than any animal in the fossil record.The discovery by Matz and his team casts doubt on the argument that ...

I am particularly interested in applying my work to Precambrian chemical sediments, which formed prior to the evolution of biomineralizing organisms. My research encompasses lab experiments, modeling, ...