Glass factory found: Basinwide (600 km) preservation of sponges on the Phosphoria glass ramp, Permian, USA (IMAGE)

PLOS

Glass factory found: Basinwide (600 km) preservation of sponges on the Phosphoria glass ramp, Permian, USA

Caption

Meadows of sponges once covered nearly 400 miles (600 km) of the ancient seafloor of western U.S.A.

Credit

A.M. Rasmussen, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

Usage Restrictions

Credit must be given to the creator.

License

CC BY

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