- The
Paleoproterozoic Era (also
spelled Palaeoproterozoic) is the
first of the
three sub-divisions (eras) of the
Proterozoic eon, and also the
longest era...
-
subdivided into
three geologic eras (from
oldest to youngest): the
Paleoproterozoic,
Mesoproterozoic and Neoproterozoic. It
covers the time from the appearance...
- as the
Vredefort Dome. The
impact structure was
formed during the
Paleoproterozoic Era, 2.023 billion (± 4 million)
years ago. It is the second-oldest...
- microcontinents,
continents and supercontinents. For the
Archean to
Paleoproterozoic cores of most of the
continents see also list of
shields and cratons...
-
incorporated among the Archaea.
Eukaryotes first emerged during the
Paleoproterozoic,
likely as
flagellated cells. The
leading evolutionary theory is they...
-
formed by the
impact of an
asteroid 1.849
billion years ago in the
Paleoproterozoic era. The ores of the
Sudbury Basin are
known to
contain nickel, copper...
-
oxygen in the atmosphere,
leading to the
Great Oxidation Event in the
Paleoproterozoic era. The
earliest evidence of
microbial oxidation of sulphur, dating...
-
defined eras: the Eoarchean, Paleoarchean, Mesoarchean, Neoarchean,
Paleoproterozoic, Mesoproterozoic, Neoproterozoic, Paleozoic,
Mesozoic and Cenozoic...
- low
atmospheric oxygen spanning from the
Statherian period of the
Paleoproterozoic era to the
Tonian period of the
Neoproterozoic era, the NOE was the...
-
Crisis or
Oxygen Holocaust, was a time
interval during the Earth's
Paleoproterozoic era when the Earth's
atmosphere and
shallow seas
first experienced...
