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Showing results for tags 'llajas formation'.
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Hello Everyone, I'm in Simi Valley, California. This area was once underwater, millions of years ago. Many fossils have been found here and they used to mine oyster shells here where there was an area with 22.5 million tons of it here. Can't wait to learn from you all.
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- california
- llajas formation
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Greetings everyone! I am a long time follower of this site. This is my first posting. Thanks ahead of time for any assistance in identifying the following. I recently found a fossilized bone and what looks like a fossilized organ or concretion. I am usually pretty good about recognizing a concretion when I see one. However, this one looks a lot different from the concretions I normally come across in the area. They were both found within several feet of each other in an alluvium/terrace deposit. R. Squires describes the alluvium as "nonmarine, Holocene, last 10,000 years" and the terrace deposit as "nonmarine, upper Pleistocene, 50,000 to 10,000 years." The location is immediately adjacent to the Santa Susana Formation (marine, upper Paleocene to lower Eocene, 54 to 50 million years) and the Simi Conglomerate (nonmarine to marine, lower Paleocene, 65 million years). There are several other formations in the general vicinity of this location. I have several pictures of both (see below). The first set (F1) are of the bone, the second set (F2) is of the possible organ/concretion.
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- bone
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