Permian-Triassic extinction event attributed to cold snap

Permian-Triassic boundary in shallow marine sediments, characterised by a significant

sedimentation gap between the black shales of Permian and dolomites of Triassic age.

This gap documents a globally-recognised regression phase, probably linked to

a period of a cold climate and glaciation [Credit: H. Bucher, Zürich]

TANN

you might also like