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Revenge of the seabed burrowers

The ancient burrowers of the seafloor have been getting a bum rap for years.

These prehistoric dirt churners a wide assortment of worms, trilobites, and other animals that lived in Earth s oceans hundreds of millions of years ago are thought to have played a key role in creating the conditions needed for marine life to flourish. Their activities altered the chemical makeup of the sea itself and the amount of oxygen in the oceans, in a process called bioturbation. ....

Noah Planavsky , Lidya Tarhan , Mingyu Zhao , University Of Leeds , New Haven , Planetary Science Letters , Cambrian Period , Earth Science , பல்கலைக்கழகம் ஆஃப் லீட்ஸ் , புதியது புகலிடம் , கிரகங்கள் அறிவியல் எழுத்துக்கள் , கேம்ப்ரியன் காலம் , பூமி அறிவியல் ,

Revenge of the seabed burrowers


By Jim Shelton
May 27, 2021
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An assemblage of burrows produced by some of the earliest seafloor-excavating animals; lower Cambrian Chapel Island Formation, Canada. (Photos by Lidya Tarhan)
The ancient burrowers of the seafloor have been getting a bum rap for years.
These prehistoric dirt churners a wide assortment of worms, trilobites, and other animals that lived in Earth’s oceans hundreds of millions of years ago are thought to have played a key role in creating the conditions needed for marine life to flourish. Their activities altered the chemical makeup of the sea itself and the amount of oxygen in the oceans, in a process called bioturbation. ....

Noah Planavsky , Lidya Tarhan , Mingyu Zhao , University Of Leeds , Planetary Science Letters , Cambrian Period , Cambro Ordovician Beach Formation , பல்கலைக்கழகம் ஆஃப் லீட்ஸ் , கிரகங்கள் அறிவியல் எழுத்துக்கள் , கேம்ப்ரியன் காலம் ,