Precambrian time covers the vast bulk of the Earth's history, ... The cnidarians, which included sea anemones, corals, and jellyfish, ...

The Precambrian was the first super eon of Earth’s history. This division of time — about seven-eighths of Earth's history — lasted from the first formation of the planet (about 4.6 billion ...

Furthermore, the Precambrian fossil record shows that early microbiotic organisms adapted to land-based stresses, developing a “lotion” to screen out solar radiation, for example.

Precambrian Eon: (4,550-543 mya) ... As underwater chimneys called deep-sea vents release dissolved iron into Precambrian waters, oxygen is used up as quickly as it is produced.

The oxygenation of Earth's atmosphere is thought to have occurred in two broad steps, but details of the process remain uncertain. Frei et al. use stable chromium (Cr) isotopes from banded iron ...

The new fossil, apparently an ancestor of the Precambrian sea sponge, was found in 600-million-year-old rocks in China. Its hundreds of thousands of microscopic cells are spectacularly preserved in ...

Digging up the Precambrian: Fossil burrows show early origins of animal behavior. ScienceDaily . Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2018 / 03 / 180312091407.htm ...

Researchers identified multiple specimens of the trace fossil Arenicolites from the late Ediacaran (Precambrian) ... Previously, the sea floor was covered by hard microbial mats, ...

Life in the Precambrian may have been much livelier than previously thought. ScienceDaily . Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2017 / 05 / 170519084411.htm ...

In a recent study published in Current Biology, researchers introduced Uncus dzaugisi, a 555-million-year-old, worm-like organism found in the ancient rocks of Nilpena Ediacara National Park (NENP ...

Deep-Sea Mushroom Creatures Found Off Australia ... In addition, Dendrogramma seems to share features with some extinct Precambrian organisms that date back to 600 million years ago, ...