The Tonian (from Ancient Greek: τόνος, romanized: tónos, meaning "stretch") is the first geologic period of the Neoproterozoic Era. It lasted from 1000 to 720 Mya (million years ago). Instead of being based on stratigraphy, these dates are defined by …

Tonian Period, earliest of the three periods of the Neoproterozoic Era, extending from 1 billion to approximately 720 million years ago. It immediately followed the Stenian Period of the Mesoproterozoic Era (which lasted from 1.2 billion to 1 billion years ago) and was succeeded by the Cryogenian Period (approximately 720 million to ...

It is preceded by the Mesoproterozoic era and succeeded by the Paleozoic era of the Phanerozoic eon, and is further subdivided into three periods, the Tonian, Cryogenian and Ediacaran.

Aug 30, 2018 · A recent study provides new details about the evolution of life on Earth during the Tonian Period, which spanned from 1000 to 720 million years ago. The Tonian occurred after a roughly one billion year stretch of time when the environment, life, and lithology of Earth was relatively stable.

Jan 1, 2020 · The Tonian and Cryogenian periods together span from 1000 to c. 635.5 Ma and are currently chronometrically divided at 720 Ma. The early Tonian followed the amalgamation of the Rodinia supercontinent and is a time for which the stratigraphic, chemostratigraphic, and fossil record is relatively sparse and poorly dated.

The Tonian was the first geological period in the Neoproterozoic era. It lasted from 1000 million years ago (mya) to 720 mya. The supercontinent Rodinia began breaking in this period. Acritarchs radiated during the Tonian.

The Tonian is the first period of the Neoproterozoic, occuring after the Stenian (Mesoproterozoic Era) and before the Cryogenian Period. What happens during this time? Above: Palaeolyngbya, a...

Mar 8, 2025 · The Tonian Period is the earliest of the Neoproterozoic Era and lasted from approximately 1 billion to 720 million years ago. The Tonian occurred between the Stenian Period of the Mesoproterozoic Era, and the Cryogenian Period of the Neoproterozoic Era.

Sep 28, 2018 · Animal multicellularity is estimated to have evolved in the Tonian Period (1000-720 Ma) and represents one of at least six independent acquisitions of complex multicellularity, characterized by cellular differentiation, three-dimensional body …

Robert Joseph Tonyan Jr. (/tʌnjən/ TUN-yən; [1] born April 30, 1994) is an American professional football tight end for the Kansas City Chiefs of the National Football League (NFL). Tonyan played for the Green Bay Packers for five seasons from 2018 to 2022. He played college football at Indiana State, and signed with the Detroit Lions as an undrafted free agent in 2017. [2]