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Fossilized Turtle Egg Or Volcanic Nodule?


Faustius23

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Hi All. I'm new here, and was wondering if someone can help us out. While out rockhounding just south east of Kramer Junction California, I found the below stone. It was found in a dry riverbed. From what I've been able to find online, the area contains fossils from the early Miocene era. Fossilized palm is supposed to be fairly common in the area, from an ancient bog.


When I spotted it, I assumed it was a different type of volcanic nodule, than what is normally found in the area (I don't believe it eroded into it's current shape, since it's "shell" conforms to the shape of the stone). However my family thinks I may have found a fossilized egg. We did find images of fossilized turtle eggs online, that appear to be somewhat similar.


Can anyone settle the debate? Is it an egg, or nodule? If an egg, what type?


post-17503-0-50946500-1422937861_thumb.jpg


post-17503-0-91050300-1422937866_thumb.jpg

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Looking very concretion to me. I am sure others will chime in with there opinions soon. Every turtle shell I have seen has a very thin shell much like a strong membrane, yours looks to be quite thick. I am no expert but I am not seeing turtle shell.

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Looks like a water rounded chert or quartzite rock to me,.... not an egg.

Regards,

Edited by Fossildude19

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The broken area shows a 'rind' that is way too thick to be turtle egg shell (or any egg of this size).

"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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