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19.60 CTS FOSSIL BELEMNITE FO-57-fossil opals

SKU
Fo-57
寸法(mm)
25.000 x 11.000 x 11.000mm
重さ (CT)
19.600
タイプ
Specimen, Rough

OPALISED FOSSIL

BELEMNITE

COOBER PEDY AUSTRALIA

Belemnitida (or belemnites) is an extinct order of squid-like cephalopods that existed from the Late Triassic to Late Cretaceous. Unlike squid, belemnites had an internal skeleton that made up the cone. The parts are, from the arms-most to the tip: the tongue-shaped pro-ostracum, the conical phragmocone, and the pointy guard. The calcitic guard is the most common belemnite remain. Belemnites, in life, are thought to have had 10 hooked arms and a pair of fins on the guard. The chitinous hooks were usually no bigger than 5 mm (0.20 in), though a belemnite could have had between 100 and 800 hooks in total, using them to stab and hold onto prey.

Belemnites formed the basis of the Mesozoic marine food chain, both the adults and the planktonic juveniles, and likely played an important role in restructuring marine ecosystems after the Triassic–Jurassic extinction event. They may have laid between 100 and 1,000 eggs. Some species may have been adapted to speed and swam in the turbulent open ocean, whereas others resided in the calmer nearshore and fed off the seafloor. The largest belemnite known, Megateuthis elliptica, had guards of 60 to 70 cm (24 to 28 in).


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fossil opals
fossil opals
sally Patel and natassa Patel have been in business for 35 years trueblueopal us family owned company Lightningopals llc is USA based sister branch of trueblueopals, we wholesale top opals from all opal fields , working with mining partner's like David Darby of yowah we specialize in investmentopals , and work with auction houses as well , sally has held several positions in opal association and is current treasurer we are members of ica and Agta and American opal society and Lrma other family members are also selling on opalauctions with over 20 stores catering from rough cut fossil beads specimens carvings and more
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  • insanemonkey42
    insanemonkey42
    ポジティブ

    As beautiful as it looks. A river of opal flowing between fossilized wood! Absolutely wonderful and it arrived quickly!

  • jstutsman
    jstutsman
    ポジティブ

    Paid and shipped - no feedback left after 100 days

  • kodiak987
    kodiak987
    ポジティブ

    Paid and shipped - no feedback left after 100 days

  • kodiak987
    kodiak987
    ポジティブ

    Paid and shipped - no feedback left after 100 days

30%
クーポンコード thanksgiving
まで有効
29th Nov 2024

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発送詳細

配送:
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発送元:
United States of America

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概要

リストタイプ : Standard
製品番号 : 1529183
始まります : 23rd October 2024 05:51 am PDT
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