一个英语句子的结构分析及翻译------------务必高手帮忙

Question

Instead, he was astonished to discover the opposite. 【More than 15% of Jurassic and Cretaceous ichthyosaurs had suffered the bends before they died, but not a single Triassic specimen（标本）showed evidence of that sort of injury.】
【】里的句子结构很乱，高手帮忙分析，然后标准翻译，谢谢

Answer 1

句子结构很简单，主要是生词多。主语是“More than 15% of Jurassic and Cretaceous ichthyosaurs” 谓语“ had suffered” 宾语“ the bends”状语“ before they died”，又But连接的从句：but not a single Triassic specimen（标本）showed evidence of that sort of injury。中文意思（我统一一楼的回答）超过15%的侏罗纪和白垩纪鱼龙在死前遭受了减压症，但是没有一个三垩纪的标本显示受到此类伤害的证据。

Answer 2

超过15%的侏罗纪和白垩纪鱼龙在死前遭受了减压症，但是没有一个三垩纪的标本显示受到此类伤害的证据。

Answer 3

反而，他很吃惊的发现了相反的事实。15%的侏罗纪和白垩纪鱼龙在死前曾经受到过外力弯曲，但是在三叠纪的标本里头，没有任何证据显示这种伤害。本回答被提问者采纳