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Over the following 70 to 80 million years, the rate of diversification accelerated by an order of magnitude and the diversity of life began to resemble that of today.

Almost all the present phyla plants (Asterids - Verbena) appeared during this period, with the exception of Bryozoa, which are a phylum of aquatic invertebrate animals who made its earliest known appearance later, in the Lower Ordovician. First land plants occurs in the Ordovician, in the form of fossil spores.

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- Galaxies - Space - Black Holes - Earth - Planets - Moon - Stars - Sun - Solar System Magnetics - Gravity Extra Terrestrial - ET - Space Aliens - Probes Space Station - Space Shuttle - Space Travel Satellites - Asteroids - Telescopes Time Measuring Pyramid of Complexity Science - Physics The photo on the right is not a Selfie.

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Ocean organisms and primitive animals start to evolve.

Marine Biology , in the late Proterozoic, oxygen levels in the oceans and atmosphere increased dramatically.

Records of the appearance and disappearance of particular taxa at a single locality are insufficient to define a bioevent.

Reionization marks the point at which the hydrogen in the Universe became ionized.

Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.

Land plants began to diversify in the Late Silurian, from around 430 million years ago, and the results of their diversification are displayed in remarkable detail in an early Devonian fossil assemblage from the Rhynie chert.

This chert, formed in volcanic hot springs, preserved several species of early plants in cellular detail by petrification.

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