Meaning of supracretaceous in English:
supracretaceous
Pronunciation /ˌsuːprəkrɪˈteɪʃəs/ /ˌsjuːprəkrɪˈteɪʃəs/
adjective
Geology
Lying above the Cretaceous series.
Origin
Mid 19th century; earliest use found in Henry Thomas De la Beche (1796–1855), geologist.