After an Early Permian down pour washed nutrients from the surrounding forests into a shallow lagoon, a following heat spell caused an algal bloom of cyanobacteria. This can become toxic and reduce oxygen in the water. This poor Prionosuchus, a large temnospondyl, succumbed to it

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This poster features prehistoric amphibians, ranging from the tiny to the behemoth that roamed the earth's swamps and wetlands millions of years ago.

https://t.co/6MsSkBUZth

Design by Caroline Flee of Soft Biology

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Drawing underrated prehistoric animals 6/?: Prionosuchus, a very large temnospondyl (amphibian) from the early Permian period. It’s shaped a bit like a gavial, and I think it’s an interesting case of convergent evolution.

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