For sale is an iridescent Hoploscaphites ammonite from the Fox Hills Formation in South Dakota. Preservation is good and details are quite fine. The back of it is plain; the shell must have eroded away. Other than that, this is a wonderful little fossil and 100% natural. This is one of my favourite ammonites in our collection as the nodes are intact and can fit perfectly in your hand.
Length: 48.72mm (1.918")
Width: 41.85mm (1.648")
Weight: 30.03 grams (1.06 oz.)
Location: Fox Hills Formation, South Dakota
Age: Maastrichtian stage, 70 million years
Geological era: Mesozoic
Ammonoids are an extinct group of marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs are more closely related to living coleoids (i.e., octopuses, squid, and cuttlefish) than they are to shelled nautiloids such as the living Nautilus species. The earliest ammonites appear during the Devonian, and the last species died out during the Cretaceous–Paleogene extinction event.
Ammonites are excellent index fossils, and it is often possible to link the rock layer in which a particular species or genus is found to specific geologic time periods. Their fossil shells usually take the form of planispirals, although there were some helically spiraled and nonspiraled forms (known as heteromorphs).
All orders are dispatched within 24 hours, except for weekends and public holidays.
Below is our shipping chart, all prices are in USD. Orders $250 USD and over come with free
standard postage worldwide.
Standard postage takes 6+ business days to arrive, whereas Express is only 1-4 business days.
|Region||Standard (tracked)||Express (1-4 business days)|
|UK & Europe||$16||$30|
Our lifetime guarantees means you can buy from us with absolute confidence. If at any time you discover the condition of your fossil was not as described (e.g. has restoration or repairs not as described) we will issue you a full refund including postage.
If your item(s) arrives damaged, or you are not 100% satisfied with it, please contact us with the details and if the problem cannot be resolved we will issue you a full refund upon receiving the item back in the mail. Our refund will include the whole amount you paid as well as the cost of your postage. We strive to make our customers happy so please contact us if you have any trouble or questions.