placoderm

placoderm

美 ['plækəˌdərm] 　英 ['plækədɜːm]

• 网络盾皮鱼

词形变化

复数：placoderms  

英汉解释

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.

研究小组后来发现了年代相近的另一种盾皮鱼，里面有三个较小的胚胎。

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

一些雄性盾皮鱼化石显示出在交配期间用来抓住雌鱼的“紧握器”的证据。

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

它是盾皮鱼中的新种类。盾皮鱼身上覆有盔甲，统治泥盆纪海洋达7000万年。