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Tonian, the Glossary

Index Tonian

The Tonian (from tónos, meaning "stretch") is the first geologic period of the Neoproterozoic Era.[1]

Table of Contents

  1. 23 relations: Acritarch, Animal, Cryogenian, Evolutionary radiation, Fossil, Geologic time scale, Geology (journal), International Commission on Stratigraphy, Mesoproterozoic, Neoproterozoic, Neoproterozoic oxygenation event, Otavia, Phylogenetic tree, Precambrian Research, Proceedings of the National Academy of Sciences of the United States of America, Radiometric dating, Reef, Rift, Rodinia, Sponge, Stenian, Stratigraphy, Supercontinent.

  2. Geological periods
  3. Neoproterozoic
  4. Proterozoic geochronology

Acritarch

Acritarchs are organic microfossils, known from approximately 1800 million years ago to the present.

See Tonian and Acritarch

Animal

Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia.

See Tonian and Animal

Cryogenian

The Cryogenian (from krýos, meaning "cold" and γένεσις, romanized:, meaning "birth") is a geologic period that lasted from. Tonian and Cryogenian are geological periods, Neoproterozoic and Proterozoic geochronology.

See Tonian and Cryogenian

Evolutionary radiation

An evolutionary radiation is an increase in taxonomic diversity that is caused by elevated rates of speciation, that may or may not be associated with an increase in morphological disparity.

See Tonian and Evolutionary radiation

Fossil

A fossil (from Classical Latin) is any preserved remains, impression, or trace of any once-living thing from a past geological age.

See Tonian and Fossil

Geologic time scale

The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth.

See Tonian and Geologic time scale

Geology (journal)

Geology is a peer-reviewed publication of the Geological Society of America (GSA).

See Tonian and Geology (journal)

International Commission on Stratigraphy

The International Commission on Stratigraphy (ICS), sometimes unofficially referred to as the "International Stratigraphic Commission", is a daughter or major subcommittee grade scientific daughter organization that concerns itself with stratigraphical, geological, and geochronological matters on a global scale.

See Tonian and International Commission on Stratigraphy

Mesoproterozoic

The Mesoproterozoic Era is a geologic era that occurred from. Tonian and Mesoproterozoic are Proterozoic geochronology.

See Tonian and Mesoproterozoic

Neoproterozoic

The Neoproterozoic Era is the unit of geologic time from 1 billion to 538.8 million years ago. Tonian and Neoproterozoic are Proterozoic geochronology.

See Tonian and Neoproterozoic

Neoproterozoic oxygenation event

The Neoproterozoic Oxygenation Event (NOE), also called the Second Great Oxidation Event, was a time interval between around 850 and 540 million years ago which saw a very significant increase in oxygen levels in Earth's atmosphere and oceans.

See Tonian and Neoproterozoic oxygenation event

Otavia

Otavia antiqua is an early sponge-like fossil found in Namibia in the Etosha National Park.

See Tonian and Otavia

Phylogenetic tree

A phylogenetic tree, phylogeny or evolutionary tree is a graphical representation which shows the evolutionary history between a set of species or taxa during a specific time.

See Tonian and Phylogenetic tree

Precambrian Research

Precambrian Research is a peer-reviewed scientific journal covering the geology of the Earth and its planetary neighbors.

See Tonian and Precambrian Research

Proceedings of the National Academy of Sciences of the United States of America

Proceedings of the National Academy of Sciences of the United States of America (often abbreviated PNAS or PNAS USA) is a peer-reviewed multidisciplinary scientific journal.

See Tonian and Proceedings of the National Academy of Sciences of the United States of America

Radiometric dating

Radiometric dating, radioactive dating or radioisotope dating is a technique which is used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed.

See Tonian and Radiometric dating

Reef

A reef is a ridge or shoal of rock, coral, or similar relatively stable material lying beneath the surface of a natural body of water.

See Tonian and Reef

Rift

In geology, a rift is a linear zone where the lithosphere is being pulled apart and is an example of extensional tectonics.

See Tonian and Rift

Rodinia

Rodinia (from the Russian родина, rodina, meaning "motherland, birthplace") was a Mesoproterozoic and Neoproterozoic supercontinent that assembled 1.26–0.90 billion years ago (Ga) and broke up 750–633 million years ago (Ma).

See Tonian and Rodinia

Sponge

Sponges (also known as sea sponges), the members of the phylum Porifera (meaning 'pore bearer'), are a basal animal clade as a sister of the diploblasts.

See Tonian and Sponge

Stenian

The Stenian Period (from stenós, meaning "narrow") is the final geologic period in the Mesoproterozoic Era and lasted from Mya to Mya (million years ago). Tonian and Stenian are geochronology stubs, geological periods and Proterozoic geochronology.

See Tonian and Stenian

Stratigraphy

Stratigraphy is a branch of geology concerned with the study of rock layers (strata) and layering (stratification).

See Tonian and Stratigraphy

Supercontinent

In geology, a supercontinent is the assembly of most or all of Earth's continental blocks or cratons to form a single large landmass.

See Tonian and Supercontinent

See also

Geological periods

Neoproterozoic

Proterozoic geochronology

References

[1] https://en.wikipedia.org/wiki/Tonian

Also known as Tonian Period.