Lot 85
Fossilized Slab Orthoceras & Ammonites (Tabletop)
Fossilized Slab Orthoceras & Ammonites (Tabletop)
- Register to Bid
- To increase your bid limit, Get Verified .
North Africa, Morocco, Devonian Period, ca. 419.2 to 358.9 million years ago. This large, circular fossil slab is polished to reveal striking Orthoceras and ammonite specimens preserved within a richly patterned brown and warm gray stone matrix. The coloration ranges from earthy chocolate tones to soft mineral grays, enlivened by the contrasting spirals and tapering forms of ancient marine life. Both decorative and functional, this piece showcases hundreds of millions of years of natural history. It may be mounted onto custom metal legs for use as a distinctive table, or placed directly atop an existing surface as a monumental coaster or display tray. A refined object for interiors that celebrate geological beauty and organic design. Size: 24" Diameter x 0.7" W (61 cm x 1.8 cm)
Prehistoric 'straight' cephalopods include straight ammonoids called orthoceras. Cephalopod evolution began during the Late Cambrian Period. Some of these creatures evolved into semi-coiled forms, eventually giving rise to coiled cephalopods like ammonites and nautili. Straight cephalopods were among the most advanced invertebrates of their time, with eyes, jaws, and a sophisticated nervous system. These creatures were predators that swam freely using a jet propulsion system by squirting water from their bodies. They had tentacles and ink sacs, much like present-day squid. Except for belemnites, cephalopods had external shells with hollow internal chambers separated by walls called septa. A tube called the siphuncle connected the body with the chambers allowing the animal to fill them with water or air, changing its buoyancy in order to rise or drop in the ocean. Only the last and largest chamber was occupied by the living animal!
Provenance: private Colorado, USA collection
All items legal to buy/sell under U.S. Statute covering cultural patrimony Code 2600, CHAPTER 14, and are guaranteed to be as described or your money back.
A Certificate of Authenticity will accompany all winning bids.
We ship worldwide and handle all shipping in-house for your convenience.
SHIPPING EXCEPTIONS: Due to customs clearance issues, we are unable to ship to Germany, Switzerland and Australia. If you live in Germany, Switzerland or Australia, you will need to provide an alternate shipping destination, or we will not be able to complete your purchase. In addition, please note that we are unable to ship ancient items back to the original country of origin (Egyptian to Egypt, Greek to Greece, etc.)
PAYMENT EXCEPTION: Unless a known customer of Artemis, payment for all gold / precious metal / gem lots must be made via Bank Wire Transfer or Certified Bank Check/Money Order, no exceptions.
#196488
- Condition: Professionally cut and polished on one planar face. Some scratches and minor chips to the edges. Overall great condition.
Accepted Forms of Payment:
American Express, Discover, MasterCard, Visa
Shipping
Auction House will ship, at Buyer's expense
Artemis Fine Arts
You agree to pay a buyer's premium of up to 25% and any applicable taxes and shipping.
View full terms and conditions
| From: | To: | Increments: |
|---|---|---|
| $0 | $299 | $25 |
| $300 | $999 | $50 |
| $1,000 | $1,999 | $100 |
| $2,000 | $4,999 | $250 |
| $5,000 | $9,999 | $500 |
| $10,000 | $19,999 | $1,000 |
| $20,000 | $49,999 | $2,500 |
| $50,000 | $99,999 | $5,000 |
| $100,000 | $199,999 | $10,000 |
| $200,000 + | $20,000 |