hadrosaur

crest

Highest point or tuft

• billAmount owed, written
• beakHorny avian mouthpart
• teethEnamel-covered chewing structures

battery · skull · nasal · vertebrae · bipedal · quadrupedal · skeleton · jaw · hindlimbs · forelimbs

duck-billed

Having a flattened beak-like mouth

• IguanodonOrnithopod genus with distinctive thumb spikes
• cladeMonophyletic taxonomic group
• genusTaxonomic rank above species

species · classification · phylogeny

grazing

Feeding on pasture

• browsingCasual examination of options
• vegetationPlant life collectively
• plantsPhotosynthesizing rooted organisms

foraging · conifers · angiosperms · herd · ferns · cycads · grinding · chewing · diet · feeding

Mesozoic

Age of Reptiles

• extinctionComplete vanishing of a species
• paleontologyStudy of ancient organisms
• geologyStudy of Earth's composition

sedimentation · Appalachia · Asia · Europe · prehistoric · ancient · era · period · timeline

excavation

Act of unearthing

• bonesRigid internal support structure
• skeletonInternal supportive framework
• petrificationBecoming rock-like

coprolite · imprint · sediment · stratigraphy · preservation · specimen · discovery · mummy · eggs · hatchling

massive

Extremely large and heavy

• largeOf great size
• bulkyLarge and awkward to handle
• robustStrong and durable

sturdy · ton · length · height · weight · meter · scale · proportions

• fossilsammonite, amber, ammonites, fossils, fossil
• Prehistoric Animalsdinosaurs, T-Rex, Velociraptor, Brachiosaurus, mammoth
• prehistoric lifedinosaurs, triceratops, Velociraptor, velociraptor, stegosaurus
• Prehistoric ReptilesT-Rex, Velociraptor, Brachiosaurus, Spinosaurus, pterosaur
• Cretaceous PeriodVelociraptor, ceratopsian, titanosaur, K-Pg boundary, Albertosaurus
• paleontologydinosaurs, fossil, paleontology, fossil record, fossils