cretaceous
UK[krɪˈteɪʃəs]US[krɪˈteɪʃəs]
adj
relating to or denoting the last period of the mesozoic era, between the jurassic and tertiary periods, characterized by the dominance of dinosaurs and the first appearance of flowering plants.
adj
(of rock) of, relating to, or denoting the latest period of the mesozoic era, or the system of rocks deposited during it.
Morpheme Breakdown
creta
ceous
creta
chalk
ceous
resembling or full of
Etymology
the term cretaceous is a modern latin formation, derived directly from latin 'creta' meaning 'chalk'. this geological period was named in the early 19th century for the extensive chalk beds found across europe, particularly the white cliffs of dover in england, which were deposited during this time. the suffix '-aceous', from latin '-aceus', is a common adjectival ending meaning 'resembling' or 'pertaining to'. thus, the word's literal meaning, 'chalky', directly reflects the characteristic rock formations that define the period, elegantly linking a physical property to a vast span of geological time.
Analysis
Structure: creta (chalk) + ceous (resembling or full of)
creta is from latin 'creta', meaning 'chalk'. ceous is a latin-derived suffix from '-aceus', meaning 'of the nature of' or 'full of'.
Examples
the cretaceous period ended with the mass extinction of the dinosaurs.
fossils from cretaceous rocks provide crucial evidence of early mammalian life.
the white cliffs are a famous example of cretaceous chalk deposits.