- The
Stenian Period (/ˈstiːni.ən/ STEE-nee-ən, from
Ancient Gr****: στενός, romanized: stenós,
meaning "narrow") is the
final geologic period in the Mesoproterozoic...
- the ICS
based on
radiometric chronometry. The
Tonian is
preceded by the
Stenian Period of the
Mesoproterozoic Era and
followed by the Cryogenian. Rifting...
- the
Stenian (1200 to 1000 Mya). The
Calymmian and
Ectasian were
characterized by
stabilization and
expansion of
cratonic covers and the
Stenian by formation...
-
despite occurring in
rocks dating to 1,047 million
years ago,
during the
Stenian period. This
fossil of a type of red alga is the
oldest example of an organism...
-
Northeastern Ontario around the area of the
Sudbury Basin c. 1,200 Ma –
Stenian Period starts. Red alga
Bangiomorpha pubescens,
earliest fossil evidence...
-
first fossilized evidence of ****ual
reproduction in
eukaryotes is from the
Stenian period,
about 1.05
billion years old.
Biologists studying evolution propose...
- Orosirian-
Stenian Not
generally regarded as a supercontinent,
depending on
definition Columbia (Nuna) 1,820–1,350 Orosirian-Ectasian
Rodinia 1,130–750
Stenian-Tonian...
-
Cryogenian (635–720 Ma)
Tonian (720 Ma–1 Ga)
Mesoproterozoic (1–1.6 Ga)
Stenian (1–1.2 Ga)
Ectasian (1.2–1.4 Ga)
Calymmian (1.4–1.6 Ga) Paleoproterozoic...
-
Siderian Rhyacian Orosirian Statherian Mesoproterozoic Calymmian Ectasian Stenian Neoproterozoic Tonian Cryogenian Ediacarian Phanerozoic Paleozoic Cambrian...
-
Cryogenian (635–720 Ma)
Tonian (720 Ma–1 Ga)
Mesoproterozoic (1–1.6 Ga)
Stenian (1–1.2 Ga)
Ectasian (1.2–1.4 Ga)
Calymmian (1.4–1.6 Ga) Paleoproterozoic...
