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About Ammonite Fossils

The Rock Professor has provided you with a mineral
information card.  Print on stock paper, and cut out to
enhance your rock and mineral products.

To print: with your cursor, highlight the entire card below,
right click and select print, then click on "selection"
and print.

THE ROCK PROFESSOR


Example of Ammonites in the Rock Professor

AMMONITES

AMMONITE–AN EXTINCT SUBCLASS OF THE CEPHALOPOD CLASS OF THE PHYLUM MOLLUSCA (Mollusks). Present-day cephalopods include the octopus, squid and nautilus, which is the closest in appearance to the ammonite. Ammonites ranged in time from approximately 400 million years(Devonian) until about 65 million years.(late Cretaceous). Their chambered shells are found today, while their soft bodies, which occupied the largest and outermost chambers, are gone. The septa, plates which divide the chambers, are highly visible in cut fossilized ammonite specimens.

Ammonites had a tube called a siphuncle, which carried water from outside the shell to the chambers, and was used to propel the ammonite as well as to change its depth in the water. Cephalopods, such as the ammonite, were swimming mollusks, rather than attached (pelecypods) or bottoms dwelling(gastropods) mollusks.

The ammonites showed an increasingly complex pattern of sutures on their shells as time went by. Sutures are the intersections of the septa and the outer shells.

Ammonite shells: originally composed of aragonite; after fossilization, the shell becomes calcite.

 

Ammolite: some of the original shells retained their mother of pearl nacre over the centuries, which during fossilization, was chemically transformed into an iridescent material called ammolite (aragonite with varying mineral impurities).

 

Localities:  include Russia, England, Morocco, U.S., Madagascar.

 

Drawing of ancient living AMMONITE

Drawing of an
ancient living
ammonite

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Results 1 - 32 of 33
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About Ammonite Fossils

Ammonite Cut and Polished Pair FSL 1904

Ammonite Cut and Polished Pair FSL 1904

Sales price: $30.00

Product details

Ammonite Orthoceras Sculpture. FSL 566

Ammonite/Orthoceras Sculpture, FSL 566

Sales price: $40.00

Product details

Ammonite Pair in Box. FSL 859

Ammonite Polished Pair in Box. FSL 859

Sales price: $9.95

Product details

Ammonite Pairs, Jewelry Grade FSL 956

Ammonite Pairs, Jewelry Grade FSL 956

Sales price: $20.00

Product details

Ammonite Pendant JWL 1374

Ammonite Pendant JWL 1374

Sales price: $29.00

Product details

Ammonite Pendant JWL 1493

Ammonite Pendant JWL 1493

Sales price: $89.00

Product details

Ammonite Pendant, JWL 2220

Ammonite Pendant, JWL 2220

Sales price: $49.00

Product details

Ammonite Perisphinctes Fossil FSL 2305

Ammonite Perisphinctes Fossil FSL 2305

Sales price: $26.00

Product details

Ammonite Perisphinctes Fossil FSL 2306

Ammonite Perisphinctes Fossil FSL 2306

Sales price: $26.00

Product details

Ammonite Perisphinctes Fossil. FSL 729

Ammonite Perisphinctes Fossil. FSL 729

Sales price: $40.00

Product details

Ammonite Perisphinctes Fossil. FSL 730

Ammonite Perisphinctes Fossil. FSL 730

Sales price: $19.55

Product details

Ammonite with Opalescent Shell FSL 1147

Ammonite with Opalescent Shell FSL 1147

Sales price: $14.00

Product details

Ammonite with Opalescent Shell FSL 1146

Ammonite with Opalescent Shell FSL 1146

Sales price: $12.00

Product details

Ammonite with Opalescent Shell FSL 1149

Ammonite with Opalescent Shell FSL 1149

Sales price: $10.00

Product details

Ammonite, cut and polished pair. FSL 248

Ammonite, cut and polished pair, FSL 248

Sales price: $62.00

Product details

Ammonite, Goniatite, Morocco FSL 1265

Ammonite, Goniatite, Morocco FSL 1265

Sales price: $90.00

Product details

Ammonite, Goniatite, Morocco FSL 1488

Ammonite, Goniatite, Morocco FSL 1488

Sales price: $180.00

Product details

Ammonite, Goniatite, Morocco FSL 1503

Ammonite, Goniatite, Morocco FSL 1503

Sales price: $240.00

Product details

Ammonite, goniatite, Morrocco. FSL 361

Ammonite, goniatite, Morrocco, FSL 361

Sales price: $220.00

Product details

Ammonite,cut and polished pair FSL 1585

Ammonite,cut and polished pair FSL 1585

Sales price: $9.95

Product details

Pyritized Ammonite JWL 1066

Pyritized Ammonite S/S JWL 1066

Sales price: $49.00

Product details

Pyritized Ammonite JWL 1070

Pyritized Ammonite S/S JWL 1070

Sales price: $39.00

Product details

Pyritized Ammonite JWL 1071

Pyritized Ammonite S/S JWL 1071

Sales price: $49.00

Product details

Pyritized Ammonite JWL 1846

Pyritized Ammonite S/S JWL 1846

Sales price: $45.00

Product details

Pyritized Ammonite JWL 1848

Pyritized Ammonite S/S JWL 1848

Sales price: $49.95

Product details

Pyritized Ammonite JWL 1849

Pyritized Ammonite S/S JWL 1849

Sales price: $49.95

Product details

Pyritized Ammonite JWL 1850

Pyritized Ammonite S/S JWL 1850

Sales price: $34.95

Product details

Pyritized Ammonite JWL 1908

Pyritized Ammonite S/S JWL 1908

Sales price: $29.00

Product details

Pyritized Ammonite JWL 1909

Pyritized Ammonite S/S JWL 1909

Sales price: $39.00

Product details

Pyritized Ammonite JWL 1910

Pyritized Ammonite S/S JWL 1910

Sales price: $39.00

Product details

Pyritized Ammonite Pendant JWL 1069

Pyritized Ammonite S/S Pendant JWL 1069

Sales price: $49.00

Product details

Pyritized Ammonite Pendant JWL 1847

Pyritized Ammonite S/S Pendant JWL 1847

Sales price: $70.50

Product details

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Refund Policy

We are willing to accept a return on any item that you’re not happy with. Give us a call or email to arrange for the return.

Conditions:

· Merchandise may be returned within 10 days of the date of receipt.
· Returned items must be in original condition
· Goods must be in their original packaging.
· Upon receipt of the return, we will credit the card you used for payment for the amount of the purchase, less shipping.