Synonyms for cretaceous
krɪˈteɪ ʃəscre·ta·ceous

Princeton's WordNet

1. Cretaceous, Cretaceous periodadjective

   from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants

2. cretaceousadjective

   abounding in chalk

3. Cretaceousadjective

   of or relating to or denoting the third period of the Mesozoic era

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1. cretaceousadjective

   Synonyms:
   chalky

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1. Jeremy Lockwood:

   Brighstoneus shows that there was greater diversity in the Lower Cretaceous iguanodontians than we realized.

2. Darla Zelenitsky:

   Such nesting colonies would have been a sight to see back in the Cretaceous where the landscape would have been dotted by a huge number of large dinosaur nests.

3. George Poinar Jr.:

   It indicates that psychedelic compounds were present back in the Cretaceous, what effect it had on animals is difficult to tell, but my feeling is dinosaurs definitely fed on this grass.

4. Pavel Stoev:

   Prior to our study, there were only four species of millipedes described from Burmese amber, which is known to be among the oldest and richest amber deposits of Cretaceous fauna.

5. Matija Cuk:

   But that fact allows us to use computer simulations to tease out the history of Saturn’s inner moons, doing so, we find that they were most likely born during the most recent 2 percent of the planet’s history. Related : Saturn's largest moon Titan is bursting with color Researchers had long thought Saturn’s rings were as old as the planet itself. But that thinking changed in 2012, when French astronomers found that tidal effects – the gravitational interaction of the inner moons with fluids deep in Saturn’s interior – are causing them to spiral to larger orbital radii comparatively quickly. The implication, given their present positions, is that these moons, and presumably the rings, are not so old. That still did n’t answer exactly when they were born. Cuk and his team turned to results from NASA’s Cassini mission, which has observed ice geysers on Saturn’s moon Enceladus. Assuming that the energy powering these geysers comes directly from tidal interactions and that Enceladus ’ level of geothermal activity is more or less constant, then the tides within Saturn are quite strong. According to the team’s analysis, these would move the satellite by the small amount indicated by the simulations in only about 100 million years. Related : Cassini probe takes' cosmic bulls-eye' of Saturn moons Enceladus, Tethys This would date the formation of the major moons of Saturn, with the exception of more distant Titan and Iapetus, to the relatively recent Cretaceous Period, the era of the dinosaurs.