New Members Pigeon Posted March 2 New Members Share Posted March 2 (edited) Hi, Any ideas as to what this kind of fossils either of these are ? They are from near Sites, California. I'm not quite sure the age, but based on the age of mudstones in the area, it should be late Jurassic to Cretaceous. Note this is form a bore hole (not surface collected), but I am not positive of depth. Thank you in advance. Edited March 2 by Pigeon Correcting photo files Link to comment Share on other sites More sharing options...
Kane Posted March 2 Share Posted March 2 These seem to be nautiloid orthocones. Nice find! 2 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Plantguy Posted March 2 Share Posted March 2 Neat stuff! I think the last specimen is different, possibly a gastropod... Do you by any chance have the counterpart of the first specimen and can show us that as well? I'm wondering if it shows the shell surface at all. I'm also intrigued by the small raised circular features..Is that an ornamentation pattern? Regards, Chris 1 Link to comment Share on other sites More sharing options...
New Members Pigeon Posted March 2 Author New Members Share Posted March 2 48 minutes ago, Plantguy said: Neat stuff! I think the last specimen is different, possibly a gastropod... Do you by any chance have the counterpart of the first specimen and can show us that as well? I'm wondering if it shows the shell surface at all. I'm also intrigued by the small raised circular features..Is that an ornamentation pattern? Regards, Chris I agree that it looks like it could be a gastropod. Unfortunately, I only have this side of the specimen, It would definitely be nice to see. Those raised features are intriguing, thanks for annotating the photo. They had not really caught my eye before. -John Link to comment Share on other sites More sharing options...
Psittacosaur9 Posted March 3 Share Posted March 3 Are the raised bumps possibly a diagnostic feature of a species or genus of nautiloid? Or perhaps a pathology? Link to comment Share on other sites More sharing options...
jpc Posted March 3 Share Posted March 3 You say Jurassic or Cretaceous.. these look like baculites. The raised bumps are called nodes and are found on some species of Baculites. Baculites are a late Cretacoeus straight ammonite. 2 Link to comment Share on other sites More sharing options...
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