New Members Ostara6 Posted May 10, 2016 New Members Share Posted May 10, 2016 Anyone know what this is? I think it is a Chiton but the soft parts would have been preserved. Is that possible? Collected in tidepools. Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 10, 2016 Share Posted May 10, 2016 It appears to be a Concretion. Not a fossil - sorry. Regards, Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Auspex Posted May 10, 2016 Share Posted May 10, 2016 Concentric structure, not segmented; concretion it is. 1 "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
lissa318 Posted May 10, 2016 Share Posted May 10, 2016 A cool concretion though!!! I like it. Keep looking! Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 10, 2016 Share Posted May 10, 2016 I'd keep it as a "worry stone". Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
New Members Ostara6 Posted May 10, 2016 Author New Members Share Posted May 10, 2016 Tim, do mean it's a concretion because a chiton has a segmented armor outside and that doesn't look like this? I would thinking it was the underside of a chiton, definitely not the top. It looks exactly like the live ones all over the beach. Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 10, 2016 Share Posted May 10, 2016 Soft body fossils are extremely rare. The shell or exoskeleton would likely be the only thing to fossilize, unless there were extremely rare circumstances that allowed for the soft body preservation. I base my ID of concretion on the concentric layers of rock. If this was found in Washington(state) concretions are pretty common there,... and often do contain fossils. However, they are usually crabs, lobsters, and other shelly or bony items. Regards, 1 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 IPFOTM -- MAY - 2024 _________________________________________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
New Members Ostara6 Posted May 10, 2016 Author New Members Share Posted May 10, 2016 Here is a side shot just to make sure it should be my new worry stone. Link to comment Share on other sites More sharing options...
Auspex Posted May 10, 2016 Share Posted May 10, 2016 Classic. Concretions grow in concentric shells, like matryoshka dolls. This specimen is geological, not biological. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
New Members Ostara6 Posted May 10, 2016 Author New Members Share Posted May 10, 2016 Okay! Cool. Yes, it would have had to be a mudslide or tsunami or something to have occurred. I do have a crab claw fossil too. That would be much much more common. Thanks for the help. This is a pretty neat forum. : ) Link to comment Share on other sites More sharing options...
Rockwood Posted May 11, 2016 Share Posted May 11, 2016 Okay! Cool. Yes, it would have had to be a mudslide or tsunami or something to have occurred. I do have a crab claw fossil too. That would be much much more common. Thanks for the help. This is a pretty neat forum. : ) Actually I think concretion is a less energetic process which occurs within the pore spaces of very unconsolidated sediments driven by the properties of very small particles. Link to comment Share on other sites More sharing options...
abyssunder Posted May 11, 2016 Share Posted May 11, 2016 I agree with the others. Nice concretion." In concentric growth, the concretion grows as successive layers of mineral accrete to its surface. This process results in the radius of the concretion growing with time. " Wikipedia " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now