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Cretaceous Period
ammonites
birds
Ichthyornis
link between reptiles and birds
overview of birds during the Cretaceous Period
chalk deposits
dinosaurs
following period, the Paleogene
formation of coal
fossils
geographical features formed during period
invertebrates
mammals
marine lizard
mass extinction
Mesozoic Era
origins and descendants of the dinosaurs (chart)
pictures related to the Cretaceous Period
reptiles
trees
Ichthyornis
Ichthyornis (Greek for “fish bird”), prehistoric bird that lived in North America in the late Cretaceous Period (about 97 million to 65 million years...
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