SharkySarah Posted August 6, 2023 Share Posted August 6, 2023 I found this gastropod in a stream in Erie. co NY. It is roughly 1 mm tall and 3 mm across. Finding resources online has proven tricky. I'm leaning towards Euryzone or Glyptotomaria but would love an opinion from someone familiar with this formation. Link to comment Share on other sites More sharing options...
Thomas.Dodson Posted August 6, 2023 Share Posted August 6, 2023 Not a fossil. This is a case from a caddisfly, Helicopsychidae (probably Helicopsyche). They build these spiral cases out of sand grains. https://en.wikipedia.org/wiki/Helicopsyche 6 1 Link to comment Share on other sites More sharing options...
SharkySarah Posted August 8, 2023 Author Share Posted August 8, 2023 On 8/5/2023 at 11:26 PM, Thomas.Dodson said: Not a fossil. This is a case from a caddisfly, Helicopsychidae (probably Helicopsyche). They build these spiral cases out of sand grains. https://en.wikipedia.org/wiki/Helicopsyche Thank you so much! I am so embarrassed, I totally forgot there were ones that don't form a straight case. Link to comment Share on other sites More sharing options...
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