OPALIZED BELEMNITE FOSSIL COOBER PEDY 13.75 ctw BF/136

Item Information

Dimensions (mm) 28 x 10 x 7mm
Weight (carats) 14 carats
Colors

Over 100 million years ago the middle of Australia was an inland sea thriving with marine life. As the Sea receded, these sea creatures were left on the sea floor. Shells, bones or cartilage formed cavities in the sandstone or the sea floor. This cavity was then filled with silica and formed the beautiful opalized belemnite pipes, shells and prehistoric fossils that we marvel at today.

Often, only rod-like broken sections of the rostrum are found. Sometimes, almost complete fosillised belemnite guards can be found, similar in size and shape to a pencil, pointed at one end, but flaring at the other end, if preserved.

Collectors specimens like these are becoming increasingly rare due to the major opal mining fields being worked out as well as an overall decline in mining activity.

TYPE: Opalized Belemnite Fossil Rough

ORIGIN: Coober Pedy, Australia  

CARAT WEIGHT: 13.75

SIZE: Approx. 28. x 9.9 x 7.3 mm 

COLOR/S: Red, Orange, Gold, Green, Blue, Violet 

THIS OPALIZED FOSSIL SPECIMEN IS UNTOUCHED ROUGH (NOT POLISHED).

Photos are taken wet for ease of viewing the colour and detail.

Belemnites (or belemnoids) are an extinct group of marine cephalopod, very similar in many ways to the modern squid and closely related to the modern cuttlefish.

Belemnites were numerous during the Jurassic and Cretaceous periods, and their fossils are abundant in Mesozoic marine rocks. The belemnites became extinct at the end of the Cretaceous period. The belemnites' origin lies within the bactritoid nautiloids, which date from the Devonian period; well-formed belemnite guards can be found in rocks dating from the Early Carboniferous) onward through the Cretaceous. Other fossil cephalopods include baculites, nautiloids and goniatites.

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Pricing & Details

Bid Increment $1.00
Starting Bid $59.00
Auction ID 214960
Watchers 2 watching
Viewed 972 times
Starts 8th Dec 2016 10:03pm PST
Ends 9th Dec 2016 10:00pm PST

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