two impressive marine creatures were swimming in harmony

the horns could have been used to defend against attacks by Tyrannosaurus and other predators of the time

in the 1990s

Charonosaurus was a large dinosaur

Its forelimbs were longer than its hindlimbs

Yinlong downsi Platecarpus two impressive marine creatures wereYinlong downsi is the only known species of the extinct Yinlong genus of chaoyangsaurid ornithischian dinosaur, which lived at the end of the Jurassic period, approximately 158 million years ago, in the Oxfordian, in what is now Asia. Yinlong downsi was a modest sized dinosaur compared to some of its later ceratopsian relatives. It measured around 1. 2 meters in length and weighed approximately 20 kilograms. It had a relatively small head compared to