GSA Today
Volume 28

Cover image

About the cover:
Animal-substrate interactions have changed dramatically through time. Limited bioturbation resulted in pristine preservation of Ediacaran primary lamination. Increased bioturbation and a new set of players characterized the Cambrian explosion. Further changes took place during the rest of the Phanerozoic with the appearance of new bioturbators. Artwork by David Mazierski.

doi: 10.1130/GSATG371A.1

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