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Ammonite Earrings


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Ammonite Earrings   The Ammonite Earrings include:
*Fossil Moroccan ammonites by Eidos
*Sterling bezels, posts

Size:   1" x 1 1/8" (2.5 cm x 3 cm)

Weight:  10.3 gm (a nickel weighs about 5 gm)


  Item #503                       $250
 
Moroccan ammonites are fossilized sea creatures which lived 340 million years ago. Folks often think these ammonites are nautilus shells because of their beautiful planispiral flat coil shape, but their closest living relatives are actually the octopus, squid and cuttlefish. Fossil ink has even been found in a few ammonites suggesting they, like today's modern cephalopods, might have squirted ink to avoid predation. (Ever had "black and white" pasta? I asked the waitress what they made the black pasta with. She replied, "squid ink." It was a very nice restaurant, I suppose I shouldn't have laughed as hard as I did.)

When the ammonite is sliced in half, as these have been, its chambers are evident. It is believed that the animal closed off the chambers as it grew and occupied the outermost chamber. Experiments with model ammonites suggest they were good swimmers. They apparently controlled their buoyancy by way of a living tube which threaded its way through the septae and enabled the animal to move sea water in and out of the chambers through a hyperosmotic active transport process. Pretty clever, huh?

Pliny the Elder gave ammonites the name ammonis cornua ("horns of Ammon") because the god Ammon wore a headdress of ram's horns (after the Egyptians conquered Kush and Ammon merged with the Kush ram-headed deity) and of course many ammonites look very much like ram's horns. (Do you ever marvel at how many things Pliny studied and classified?) Later, in Europe, ammonites were understood to be snakes petrified by St. Hilda or St. Patrick, and Wiki says that enterprising merchants sometimes carved snake heads on the "serpentstones" to enhance the illusion. And now we are quite sure that they were living animals with hyperosmotic active transport pumps and anaptychi which functioned as specialized jaws. When your great grandchildren study these earrings, how will they understand them?

Musings aside, these little fossils are very beautiful and I do hope you will order them. You can even pretend to hear the ancient sea when you wear them.



One-of-a-kind, subject to prior sale

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