amphicoelias standing at the water's edge, towering over the shore in a serene prehistoric landscape

amphicoelias dinosaur water edge towering shore prehistoric jurassic cretaceous giant reptile herbivore mesozoic fauna nature ancient landscape tranquil scene wildlife evolution extinct land river pond reflection peaceful history large animal majestic natural environment shorelife shoreline primal species reptiles flora habitat grazing massive prehistoricgiant earth toweringcreature peacefuldinosaur extinction ecosystem wateredge dinosaurbehavior prehistoriclandscape landcreature toweringherbivore majesticdinosaur dinosaurscene paleontology prehistoricfauna naturalworld riverbank shorecreature toweringpresence slowmoving survival peacefulscene naturalsetting primalworld ancientlife