The Precambrian eon is vast, almost unimaginably so. In fact, before some fossil discoveries were made late in the 20th century, it was considered unknowable -- evolution's dark ages. The ...

He commented, "It's a remarkable find, as it places Ecdysozoans in the Precambrian Eon, supporting the idea that this lineage predates the Cambrian explosion. Identifying an early ecdysozoan and ...

The largest unit of defined geologic time is the supereon. Only one is defined, the Precambrian spanning from the formation of the Earth to right before life goes crazy in the Cambrian explosion (4.6 ...

Imagine a world very different than we know today. About 1.5 billion years ago during the Precambrian Eon, the earth’s environment was desolate, with no trees, fish, large animals or birds.

In a new study published in Current Biology, researchers describe Uncus dzaugisi, a 555-million-year-old worm-like organism preserved in the Precambrian rocks of Nilpena Ediacara National Park ...

The fossils are at least 555 million years old, dated to the Ediacaran period, the latter part of the Precambrian eon. The fossil was excavated in Mongolia.

Peer-Reviewed Publication University of Liège image: Microphotograph of the fossil Arctacellularia tetragonala, one of the first unambiguous fossils of photosynthetic eukaryotes. view more ...

New research in Science Advances is uncovering the vital role that Precambrian-eon microbes may have played in two of the early Earth's biggest mysteries.

The razor-sharp teeth belonged to conodonts, jawless vertebrates that evolved some 500 million years ago in the Precambrian eon and went extinct during the Triassic period, around 200 million ...

Identification of one of the first multicellular algae thanks to its chlorophyll fossilized for 1 billion years Date: January 12, 2022 Source: University of Liege Summary: Researchers have ...

The razor-sharp teeth belonged to conodonts, jawless vertebrates that evolved some 500 million years ago in the Precambrian eon and went extinct during the Triassic period, around 200 million ...