specimen of birds的意思|示意

The famous Archaeopteryx – the first specimen of which resides in the Natural History Museum in London – for example, is one such transitional fossil between the reptiles and birds.

比如，伦敦自然历史博物馆第一个标本物种、著名的始祖鸟化石就是爬行动物和鸟类之间的过渡物种化石。

What Dr O'Connor and her colleagues have found is the remains of one of those birds, of an as-yet-unidentified species, in the stomach of a specimen of Microraptor.

O’Connor 博士和她的同事们发现的是在“小盗龙”标本的胃中发现的还没消化完的一种这些鸟类中的一员，目前还没确认的物种。