Basilosaurus

basilosaurus

1
龙王鲸
...旗首领议政的殿在其后鲸类的再次进化过程中在幕府时代,还有农民把“曼波鱼”献给龙在恐龙时代的霸主地位 龙王鲸(basilosaurus) 是海洋中重要的大型浮游生物恐龙时代十大残酷血腥史:史前巨蟒生吞霸王龙是一个弱肉强食的时代···早上家里的一条斑马鲸生龙涎...
2
龙王鲸属
以后的龙王鲸科比如龙王鲸属(Basilosaurus)，金鲸属(Chrysocetus)及辛西娅鲸属(Cynthiacetus)仍保留了已退化的后肢及髋骨，这显示龙王鲸科(Basilosauridae)的颊齿首先出现附...
3
背脊鲸
背脊鲸 （ Basilosaurus ）拥有很长的身体，较短的脖子，满嘴长而尖的牙齿。当它们付出水面，是很容易被认为是海蛇龙的。
4
械齿鲸
... Basiliscus vivitatus ; Brown Basiliscus 褐双冠蜥 Basilosaurus 械齿鲸 basioccipital bone 基枕骨 ...

短语

1
Several skeletons of another early whale, Basilosaurus, were found in sediments left by the Tethys Sea and now exposed in the Sahara desert.
在特提斯海留下的沉积物中发现了另一种早期鲸鱼龙王鲸的几具骨架，它们现在暴露在撒哈拉沙漠中。
2
Very recently in Egypt, they found a skeleton of Basilosaurus.
他们最近在埃及发现了一具龙王鲸骨架。
3
Basilosaurus was undoubtedly a fully marine whale with possibly nonfunctional, or vestigial, hind legs.
龙王鲸无疑是一种完全海生的鲸鱼，它的后腿可能没有功能，或退化了。

Basilosaurus
Basilosaurus ("king lizard") is a genus of early whale that lived 40 to 34 million years ago in the Late Eocene. The first fossil of B. cetoides was discovered in the United States and was initially believed to be some sort of reptile, hence the suffix -"saurus", but it was later found to be a marine mammal. Richard Owen wished to rename the creature Zeuglodon ("yoked tooth"), but, per taxonomic rules, the creature's first name remained permanent. Fossils of B. isis have been found in Egypt and Jordan. B. drazindai was described based on a single vertebra found in Pakistan.The species B. cetoides is the state fossil of Mississippi and Alabama in the United States.

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