hadrosaurs
Cretaceous herbivorous reptiles
Hadrosaurs were duck-billed dinosaurs that lived during the Late Cretaceous period, characterized by their broad, flattened snouts and complex dental batteries for grinding vegetation.
They walked on two or four legs and were among the most successful herbivorous dinosaurs before the mass extinction.
Some species had elaborate crests that may have functioned in communication or display.
Age of Reptiles
- ceratopsianHorned, frilled dinosaur group
- extinctionComplete vanishing of a species
- AppalachiaEastern U.S. mountain region
- floodplainFlood-prone riverside lowland
Study of ancient organisms
- excavationAct of unearthing
- skeletonInternal supportive framework
- mummyEmbalmed, wrapped ancient body
- trackwaysPreserved movement traces
nesting grounds · coprolite · sediment · stratigraphy · preservation · articulated · specimen · discovery
Feeding on pasture
- browsingCasual examination of options
- vegetationPlant life collectively
- conifersCone-producing trees
- fernsSpore-bearing vascular plants
angiosperms · horsetails · magnolias · herd · foraging · plant-eater · grinding · chewing
Broad flat animal snout
- crestHighest point or tuft
- batteryPortable electricity storage
- teethEnamel-covered chewing structures
- beakHorny avian mouthpart
bipedal · quadrupedal · hollow · resonating · vocalization · skull · vertebrae · tail
Managing animal groups
- nestingMaking a dwelling
- parental careOffspring protection and nurturing
- migrationMovement to new territory
- colonialOf occupied territories
juveniles · eggs · growth · social · vocalization · communication · display · mating
Mesozoic
Age of Reptiles
- ceratopsianHorned, frilled dinosaur group
- extinctionComplete vanishing of a species
- AppalachiaEastern U.S. mountain region
floodplain · coastal · lowland · subtropical
paleontology
Study of ancient organisms
- excavationAct of unearthing
- skeletonInternal supportive framework
- mummyEmbalmed, wrapped ancient body
trackways · nesting grounds · coprolite · sediment · stratigraphy · preservation · articulated · specimen · discovery · quarry
grazing
Feeding on pasture
- browsingCasual examination of options
- vegetationPlant life collectively
- conifersCone-producing trees
ferns · angiosperms · horsetails · magnolias · herd · foraging · plant-eater · grinding · chewing · flora
duckbill
Broad flat animal snout
beak · bipedal · quadrupedal · hollow · resonating · vocalization · skull · vertebrae · tail · hindlimbs
herding
Managing animal groups
- nestingMaking a dwelling
- parental careOffspring protection and nurturing
- migrationMovement to new territory
colonial · juveniles · eggs · growth · social · vocalization · communication · display · mating · crests
Iguanodon
Ornithopod genus with distinctive thumb spikes
- Mesozoicdinosaurs, Velociraptor, Brachiosaurus, Spinosaurus, pterosaurs
- dinosaursdinosaurs, Velociraptor, Brachiosaurus, raptors, Spinosaurus
- fossilsdinosaur bones, ammonite, amber, ammonites, fossils
- prehistoric lifedinosaur, dinosaurs, triceratops, Velociraptor, velociraptor
- archosaursarchosaurs, dinosaurs, dinosaur, birds, pterosaurs
- herbivorous dinosaurstriceratops, stegosaurus, ankylosaurus, iguanodon, ceratopsian
hadrosaurstheropods
Carnivorous bipedal dinosaurs
tyrannosaurs · Tyrannosaurus rex · apex predators · velociraptors · Spinosaurus