这种食肉动物已被确认为一种上龙，上龙是一类已经灭绝了的水生爬行动物，有巨大的头骨，粗短的脖子，还有令它们在水里来去自如的四只脚蹼。
The predator has been identified as a new species of pliosaur, a group of extinct aquatic reptiles that had huge skulls, short necks and four flippers to power them through the water.
“恐爪龙类”比如“伶盗龙”，用两条腿走路，食肉，有邪恶的可伸缩的爪。
Deinonychosaurs, such as the velociraptor, walked on two legs, ate meat and had vicious retractable claws.
应用推荐