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Permian gastropods and bivalves, Manhattan, Kansas


trisk

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I've been finding hundreds of these tiny spiral shells in the same matrix as some larger, pointed shells. Curious what both of them are.

 

There's also one specimen IMG_20170719_002626100.thumb.jpg.60955918529eafaf759e453324a725b8.jpgof what appears to be a small brachiopod with "flaps" at the hinge, like a scallop.

IMG_20170719_003142183.jpg

IMG_20170719_003151935.jpg

IMG_20170719_003216606.jpg

IMG_20170719_003257463.jpg

IMG_20170719_003331237.jpg

Also these much larger spiral shells which were found in loose sediment.

IMG_20170719_001936917.jpg

IMG_20170719_001911121.jpg

IMG_20170719_001844303.jpg

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Don't know what the smaller ones are but the larger ones in the last photo are Amphiscapha, a type of snail.

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The smaller ones may be foraminifera.

“...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin

Happy hunting,

Mason

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8 hours ago, Foozil said:

I don't know exactly what they are, but they are very nice. Are they preserved in limestone?

Seems to be limestone (fizzes in acid).

 

Here's some close ups. First photo is the hinge end of the small bivalve shell in the same matrix.

IMG_20170719_111751253.jpg

IMG_20170719_111634944.jpg

IMG_20170719_111535144.jpg

IMG_20170719_111210456.jpg

IMG_20170719_111051230.jpg

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