Sentences with phrase «plesiosaurs did»

Other prehistoric marine reptiles were known to be exceptions to that rule, but until now fossil evidence that plesiosaurs did the same has been frustratingly elusive.

Social animals tend to be smarter than solitary ones, because of the cognitive demands of group living, so if plesiosaurs did live in groups they ought to show signs of intelligence.

Not exact matches

Under these theories, we should expect to see plesiosaurs alongside dolphins, pteradons alongside golden eagles, but of course, we do not.

They were closely related, though they didn't look it: plesiosaurs had long necks, small heads and graceful bodies, while the pliosaurs had massive bodies, short necks and large heads.

The ichthyosaurs, plesiosaurs, and marine crocodiles flourished, as did bivalves, belemnites, brachiopods, echinoids, starfish, sponges and ammonites among the invertebrates.