geochem Posted September 3, 2014 Share Posted September 3, 2014 I am new to the forum and this is my first time posting. I do appreciate the existance of the forum and look forward to exploring all it has to offer. So. On a recent trip to the C&D canal in Delaware, Reedy point to be exact, I found this 3/4 " fossil. I think it is Creataceous and I think it is an Ostrea. I have done some research and have not been able to pin this one down. Any thoughts? And thanks for any help. Edge view Side 1 view Side 2 view Link to comment Share on other sites More sharing options...
Cole Posted September 3, 2014 Share Posted September 3, 2014 or possibly Pterotrigonia thoracica Knowledge has three degrees-opinion, science, illumination. The means or instrument of the first is sense; of the second, dialectic; of the third, intuition. Plotinus 204 or 205 C.E., Egyptian Philosopher Link to comment Share on other sites More sharing options...
Shamalama Posted September 3, 2014 Share Posted September 3, 2014 Looks like Ostrea falcate to me. -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
tmaier Posted September 3, 2014 Share Posted September 3, 2014 It's definitely an oyster of family Ostreidae, but may not be genus Ostrea. It might be a juvenile, and the problem with that is the images given for identification are normally adults. As some oysters grow, they can change their characteristics. That makes it confusing to classify a juvenile specimen. Here's a pdf of common fossils of the cretaceous of delaware. I have a slow modem so I can't easily download it, but check it out. http://www.dgs.udel.edu/sites/dgs.udel.edu/files/publications/RI21e.pdf Link to comment Share on other sites More sharing options...
geochem Posted September 3, 2014 Author Share Posted September 3, 2014 It's definitely an oyster of family Ostreidae, but may not be genus Ostrea. It might be a juvenile, and the problem with that is the images given for identification are normally adults. As some oysters grow, they can change their characteristics. That makes it confusing to classify a juvenile specimen. Here's a pdf of common fossils of the cretaceous of delaware. I have a slow modem so I can't easily download it, but check it out. http://www.dgs.udel.edu/sites/dgs.udel.edu/files/publications/RI21e.pdf Link to comment Share on other sites More sharing options...
geochem Posted September 3, 2014 Author Share Posted September 3, 2014 Thanks I was wondering if it was a juvenile Link to comment Share on other sites More sharing options...
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