placoderms
基本解释
- 盾皮鱼纲
英汉例句
- The team later discovered a placoderm of a different species but similar date, with three smaller embryos inside it.
“你们用我的名字命名如此神奇的生物，我感到万分荣幸，”艾登堡爵士向澳大利亚的古生物学家们表示。 - 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。 - 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。 - In the lower center, box-like armored placoderms belonging to the genus Bothriolepis cruise slowly over the muddy bottom in order to feed on detritus.
在河底，两条盾皮鱼正在刮取食物。在右侧的河底，一条装甲的无颌鱼形动物正在享受它们最后的时光，它们看起来确实很像鱼类，但它们没有可以自由开合的口。 - ” 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。