Cruisaire Posted September 20, 2019 Share Posted September 20, 2019 My last inquiry, as found in clay stone/mudstone @ Savannah River Link to comment Share on other sites More sharing options...
sharkdoctor Posted September 20, 2019 Share Posted September 20, 2019 Interesting! They look like caddisfly larval cases that have been coated in biofilm from the river. About the right size, too: https://bugguide.net/node/view/1055316/bgimage 2 Link to comment Share on other sites More sharing options...
Cruisaire Posted September 20, 2019 Author Share Posted September 20, 2019 Brilliant Sharkdoctor! Although I observed them insitu with the clay stone, they must be more recent and likely not as old as perceived. Link to comment Share on other sites More sharing options...
Rockwood Posted September 20, 2019 Share Posted September 20, 2019 7 minutes ago, Cruisaire said: Brilliant Sharkdoctor! Although I observed them insitu with the clay stone, they must be more recent and likely not as old as perceived. I'm pretty sure this form of construction started in the early Paleozoic. I recently collected something similar to it from the Devonian. Haven't gotten around to posting it for confirmation though. 1 Link to comment Share on other sites More sharing options...
Cruisaire Posted September 20, 2019 Author Share Posted September 20, 2019 Good information, thank you! Link to comment Share on other sites More sharing options...
Cruisaire Posted September 23, 2019 Author Share Posted September 23, 2019 There are a few tiny silk fibers inside. Thanks for the call Sharkdoctor! Link to comment Share on other sites More sharing options...
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