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Scot Malcolm posted an image in the group What is it? from the myFOSSIL app 4 years, 5 months ago
4 years, 5 months ago4 years, 5 months agoNow I’m trying to pinpoint the collection site.
Scot Malcolm posted an image in the group What is it? from the myFOSSIL app 4 years, 5 months ago
Now I’m trying to pinpoint the collection site.
Echinoderms sea urchins
This is a very cool group of specimens! You’ve got some bivalves and some echinoderms in there.
Are Urchins. The local where you found this fossil is the miocene period?
Or cretaceus period?
From the Van Duzen River in California. Alluvial deposits. Quaternary?
Thank you.
I am reading now that this area is mezosoic complex. Probably the river trawl the stone. It’s very nice fossil. Probably there are Cretaceus urchins, because there are very similar cretaceus urchin in Portugal
They look like sand dollars (Clypeasteroida) instead of sea urchins since the ambulacrum (petaloids) don’t extend to the other side.
I thought most were sand dollars. There os one that looks tubular, or at least round with a pattern inside.
Thank you, btw.