Fossilizable Posted April 12, 2021 Share Posted April 12, 2021 This piece of arkosic sandstone from the late Eocene Coldwater formation north of Santa Paula, CA, has a few marine species traces. It would be great if anyone could ID the bivalves, but what really seems different is the set of chevrons I've pointed to in the top photo. Maybe it's just two bivalves wedged together to look like one? Appreciate the help! Link to comment Share on other sites More sharing options...
ClearLake Posted April 13, 2021 Share Posted April 13, 2021 Nice finds. The ribbed bivalve looks like it could be a species of Callista, the third picture is a scaphopod. Not entirely sure what the chevron pattern is. Here is paper that may help you: https://decapoda.nhm.org/pdfs/33598/33598.pdf 1 Link to comment Share on other sites More sharing options...
Fossilizable Posted April 13, 2021 Author Share Posted April 13, 2021 Very helpful. Thanks! Link to comment Share on other sites More sharing options...
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