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The way I got to it was through googling "banded iron" on wikipedia. However, last time I tried that I had forgotten the exact name and it took me an inordinate amount of time to hit on "banded iron". The first time I just serendipitously hit the cluster of articles.

To nitpick a little, it was likely caused by a single taxon, unless photosynthesis was evolved indepedently by disparate organisms.

We have met the enemy, and he is us — Pogo

by Migeru (migeru at eurotrib dot com) on Wed Jan 2nd, 2008 at 08:11:35 PM EST
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