Early Triassic

The Early Triassic is the first of three epochs of the Triassic Period of the geologic timescale. It spans the time between 252.17 ± 0.06 Ma and 247.2 Ma (million years ago). Rocks from this epoch are collectively known as the Lower Triassic, which is a unit in chronostratigraphy. The Early Triassic is the oldest epoch of the Mesozoic Era and is divided into the Induan and Olenekian ages.

单词	Early Triassic epoch
释义	Early Triassic epoch 英语百科 Early Triassic The Early Triassic is the first of three epochs of the Triassic Period of the geologic timescale. It spans the time between 252.17 ± 0.06 Ma and 247.2 Ma (million years ago). Rocks from this epoch are collectively known as the Lower Triassic, which is a unit in chronostratigraphy. The Early Triassic is the oldest epoch of the Mesozoic Era and is divided into the Induan and Olenekian ages.
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Early Triassic epoch

Early Triassic