placoderm

美 ['plæk??d?rm] 　英 ['plæk?d??m]

• 網(wǎng)絡盾皮魚

詞形變化

復數(shù)：placoderms  

英漢解釋

n.	1. an extinct animal resembling a fish that was covered with bony plates and lived in the Paleozoic era.

例句

The team later discovered a placoderm of a different species but similar date, with three smaller embryos inside it.

研究小組后來發(fā)現(xiàn)了年代相近的另一種盾皮魚，里面有三個較小的胚胎。

Some male placoderm fossils show evidence of "graspers" that held the female fish during copulation.

一些雄性盾皮魚化石顯示出在交配期間用來抓住雌魚的“緊握器”的證據(jù)。

It is a new species of placoderm, the type of armour-plated fish that dominated the Devonian oceans for 70m years.

它是盾皮魚中的新種類。盾皮魚身上覆有盔甲，統(tǒng)治泥盆紀海洋達7000萬年。