Geology

Geology
The 366 daily episodes in 2014 were chronological snapshots of earth history, beginning with the Precambrian in January and on to the Cenozoic in December. You can find them all in the index in the right sidebar. In 2015, the daily episodes for each month were assembled into monthly packages (link in index at right), and a few new episodes were posted from 2015-18. You may be interested in a continuation of this blog on Substack at this location. Thanks for your interest!

Thursday, February 13, 2014

February 13. The Burgess Shale, again


Today’s podcast is a brief report on my personal favorite Burgess Shale animals: Anomalocaris and Opabinia.

Anomalocaris - up to 6 feet long

Opabinia - less than 3 inches long


And here is a link to the February 2014 news report mentioned in the podcast (thanks to Colleen Elliott for finding this). And another link, with photos.

UPDATE: from predator to filter feeder

Artist’s reconstructions both by Nobu Tamura, via Wikipedia under GNU Free Documentation License: Anomalocaris  •  Opabinia.


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