Manuel Quiring

化石拍賣（史前巨無霸）

来自印尼爪哇，Cikalong 的真品大白鲨三叠纪巨齿鲸鲨牙

优质巨齿鲨牙，牙尖完好、锯齿清晰、珐琅质完好

巨齿鲨（/ˈmɛɡələdɒn/ MEG-əl-ə-don；Otodus megalodon），意为“巨齿”，是已灭绝的鲭鲨科鲨鱼，生活时期介于约2300万年前至360万年前的新近始中新世至上新世。它曾被认为属于狼鲨科，并与大白鲨（Carcharodon carcharias）有密切关系。然而现在被归入灭绝家族Otodontidae，该家族在早白垩纪便已与大白鲨分道。

尽管被认为是有史以来最大且最强大的掠食者之一，巨齿鲨的证据仅以碎片化化石为主，其外形和最大体型仍不确定。科学家对其外形的看法各不相同：它更像大白鲨的增壮版本、抑或是鲸鲨（Rhincodon typus）、巨齿鲸鲨（Cetorhinus maximus）或沙虎鲨（Carcharias taurus）的近似形态。最近的一项估算给出的误差最小，最大身长可达约20.3米（67英尺），体重可达约103公吨（114短吨）。

长度：11.8厘米
将通过PostNL投保运输。
物品编号：JJJ29

Authentic Carcharocles megalodon tooth from Indonesia, Java , Cikalong 

Quality Megalodon Tooth, with good tip, serrations , and enamel, 

Megalodon (/ˈmɛɡələdɒn/ MEG-əl-ə-don; Otodus megalodon), meaning "big tooth", is an extinct species of mackerel shark that lived approximately 23 to 3.6 million years ago (Mya), from the Early Miocene to the Pliocene epochs. It was formerly thought to be a member of the family Lamnidae and a close relative of the great white shark (Carcharodon carcharias). However, it is now classified into the extinct family Otodontidae, which diverged from the great white shark during the Early Cretaceous.

While regarded as one of the largest and most powerful predators to have ever lived, the megalodon is only known from fragmentary remains, and its appearance and maximum size are uncertain. Scientists differ on whether it would have more closely resembled a stockier version of the great white shark, the whale shark (Rhincodon typus), the basking shark (Cetorhinus maximus) or the sand tiger shark (Carcharias taurus). The most recent estimate with the least error range suggests a maximum length estimate up to 20.3 meters (67 ft),  weighs up to 103 metric tons (114 short tons)


Lenght 11,8 cm
Will be shipped insured with PostNL.
Item JJJ29

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巨齿鲨牙 11.8厘米 - 牙齒化石 - Carcharocles megalodon  (沒有保留價)

新近紀 (2303 - 258萬年） - 印度尼西亚 爪哇 Cikalong

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巨齿鲨牙 11.8厘米 - 牙齒化石 - Carcharocles megalodon (沒有保留價)

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