英语词汇“belemnite”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

belemnite

/ˈbɛləmnʌɪt

noun

An extinct cephalopod mollusc with a bullet-shaped internal shell that is typically found as a fossil in marine deposits of the Jurassic and Cretaceous periods.

Order Belemnoidea, class Cephalopoda: many genera.

These turned out to be remains from the tentacles of extinct squid-like belemnites....

They included the great marine reptiles such as ichthyosaurs and plesiosaurs, but also smaller creatures such as ammonites and belemnites - the precursor's of today's squid.
Urgonian facies are also characterized, negatively, by the absence of ammonites and belemnites.

Origin

Early 17th century: from modern Latin belemnites, based on Greek belemnon 'dart'.

单词	belemnite
释义	belemnite /ˈbɛləmnʌɪt / noun An extinct cephalopod mollusc with a bullet-shaped internal shell that is typically found as a fossil in marine deposits of the Jurassic and Cretaceous periods. Order Belemnoidea, class Cephalopoda: many genera. These turned out to be remains from the tentacles of extinct squid-like belemnites.... They included the great marine reptiles such as ichthyosaurs and plesiosaurs, but also smaller creatures such as ammonites and belemnites - the precursor's of today's squid. Urgonian facies are also characterized, negatively, by the absence of ammonites and belemnites. Origin Early 17th century: from modern Latin belemnites, based on Greek belemnon 'dart'.
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