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Found on beach in San Francisco in an area where I look for fossils. The shapes almost look like invertebrates, maybe sea cucumbers, jellyfish or tunicates. Are they fossils or just interesting looking patterns that formed on the rock?


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I don't know but I don't think they are fossils.

"Absence of evidence is not evidence of absence"_ Carl Sagen

No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go.

" I think, therefore I collect fossils." _ Me

"When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes

"can't we all just get along?" Jack Nicholson from Mars Attacks

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What does the other side of the rock look like?

I wonder whether they might not be in-filled burrows...the part that looks like a bunch of pellets reminds me of the pellets associated with some shrimp burrows.

"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!

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