AN IRIDESCENT DAKOTAN AMMONITE
拍品 154

AN IRIDESCENT DAKOTAN AMMONITE

已結束2012年5月22日

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GBP 7,500

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AN IRIDESCENT DAKOTAN AMMONITE
from the upper Cretaceous, Fox Hills Formation, (approx. 65 Mya) a specimen of Sphenodiscus splendens showing iridescence of red, green, turquoise and purple.
9½in. (24cm.) diameter

專家說明

The ammonites are a group of animals that lived in the seas from the mid-Devonian (approximately 400 million years ago) to the end of the Cretaceous. The sequence of events that famously killed off the dinosaurs also drove the ammonites to extinction.