Ruling the shallow sea for roughly 96 million years, the Ediacara fauna went extinct about 539 to 500 million years ago, marking the end of the Proterozoic Eon and the beginning of the Phanerozoic ...

Earliest animals evolved in the mid to late Proterozoic Eon and lie deep in the fossil record. Please give special attention to the photo credit, as it is from a participating researcher not from ...

Archean Eon (4 - 2.5 billion years ago): Formation of early continental crust; emergence of the first simple life forms (prokaryotes). Proterozoic Eon (2.5 billion - 541 million years ago ...

Information-molecule loss from centriole-kinetosomes (such as gene loss in plastids and mitochondria) occurred in the sulphurous Proterozoic eon (2500–541 million years ago 17) during which time ...

Their research revealed how these early life forms contributed to the transition from the Proterozoic to the Phanerozoic eon.

During the Proterozoic era, oxygen produced by photosynthesizing bacteria collects in the oceans and then in the atmosphere. Iron present in exposed rocks reacts with this oxygen, and rust colors ...

The Hadean eon represents the time before a reliable (fossil) record of life; it began with the formation of the planet and ended 4.0 billion years ago. The following Archean and Proterozoic eons ...

Eon Latest Update: Hyundai Eon has been discontinued and the car is out of production. Eon Specification: The Eon is Hyundai's entry-level hatch. It is the perfect blend of style, performance and ...

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 ...