It spans the time between 251.902 Ma and 246.7 Ma (million years ago). Rocks from this epoch are collectively known as the Lower Triassic Series, which is a unit in chronostratigraphy. The Early …

During the Triassic, the first dinosaurs walked on the land, the first pterosaurs sailed through the skies, and the first ichthyosaurs and plesiosaurs swam in the oceans. The lineage of many modern-day …

Aug 23, 2025 · At the end of the Late Permian, the greatest extinction in the history of life clobbered ecosystems on land and sea. This event totally changed the make-up of the diversity of life, and …

The meaning of TRIASSIC is of, relating to, or being the earliest period of the Mesozoic era or the corresponding system of rocks marked by the first appearance of the dinosaurs.

Nov 1, 2025 · The Triassic Period is divided into three epochs: the Early Triassic (252 million to 247 million years ago), the Middle Triassic (about 247 million to 235 million years ago), and the Late …

The name "Triassic" is derived from German geologist Frederich August von Alberti's Trias (1834), which united three rock formations: coloured sandstone (Figure 2), clam limestone, and non-marine …

The Triassic Period (252 to 201 million years ago) marked the beginning of the Mesozoic Era and the rise of the dinosaurs and is one of the three main dinosaur time periods.

The Triassic was a geological period that marked the end of the Permian age and saw the first Dinosaurs find their place in a chaotic world.

The Triassic Period is the first period of the Mesozoic Era. In the stratigraphic table, it initiates a new era in Earth’s history, succeeding the Permian Period (Paleozoic Era).

What was the Triassic Period? The Triassic is the first period of the Mesozoic Era. It began 248 million years ago and ended 206 million years ago, spanning an estimated interval of 42 million years.