cretaceous

As an adjective cretaceous

is of or relating to chalk.

As a noun geophagy is

the practice of eating earthy substances such as clay and chalk, often thought to augment a mineral-deficient diet.

As adjectives the difference between cetaceous and cretaceous

is that cetaceous is relating to whales or more generally to any marine mammal of the order Cetacea while cretaceous is of or relating to chalk.

As a proper noun Cretaceous is

the geologic period within the Mesozoic era that comprises lower and upper epochs from about 146 to 65 million years ago.

As an adjective cretaceous

is of or relating to chalk.

As a noun hamites is

.

As a proper noun hamites is

a group of heteromorph ammonites of the turrilitaceae superfamily, alive during the cretaceous.

As adjectives the difference between cretaceous and multituberculate

is that cretaceous is of or relating to chalk while multituberculate is having molars with multiple rows of cusps.

As a proper noun Cretaceous

is the geologic period within the Mesozoic era that comprises lower and upper epochs from about 146 to 65 million years ago.

As a noun multituberculate is

any of a small group of rodent-like mammals, of the order Multituberculata, from the Cretaceous and Paleocene periods.

As an adjective cretaceous

is of or relating to chalk.

As a noun oviraptor is

any of several bipedal dinosaurs, of the genus , from the late cretaceous period.

As a proper noun Cretaceous

is the geologic period within the Mesozoic era that comprises lower and upper epochs from about 146 to 65 million years ago.

As an adjective cretaceous

is of or relating to chalk.

As a noun rudist is

any of many box, tube or ring -shaped marine heterodont bivalves from the Jurassic and Cretaceous periods.

As an adjective cretaceous

is of or relating to chalk.

As a noun giganotosaurus is

any of several very large, carnivorous dinosaurs of the subfamily giganotosaurinae , from the cretaceous period.

As an adjective cretaceous

is of or relating to chalk.

As a proper noun iguanodon is

.

As a proper noun Cretaceous

is the geologic period within the Mesozoic era that comprises lower and upper epochs from about 146 to 65 million years ago.

As an adjective cretaceous

is of or relating to chalk.

As a noun pachycephalosaur is

any of a group of herbivorous dinosaurs, of the genus Pachycephalosaurus from the late Cretaceous period.

As an adjective cretaceous

is of or relating to chalk.

As a noun allosaur is

any of several huge carnivorous dinosaurs, of the superfamily allosauroidea, from the late jurassic and early cretaceous periods.