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Cretaceous vs Azhdarchid - What's the difference?

cretaceous | azhdarchid |

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 azhdarchid is

any member of the Azhdarchidae, a family of pterosaurs known primarily from the late Cretaceous including some of the largest known flying animals of all time.

cretaceous

English

(wikipedia Cretaceous)

Proper noun

(en proper noun)
  • (geology) The geologic period within the Mesozoic era that comprises lower and upper epochs from about 146 to 65 million years ago
  • *
    • As with the Lejeuneaceae, this pattern of massive speciation appears to be correlated with the Cretaceous explosion of the angiosperms and the simultaneous creation of a host of new microenvironments, differing in humidity, light intensity, texture, etc.

    See also

    *

    azhdarchid

    English

    Noun

    (en noun)
  • Any member of the Azhdarchidae , a family of pterosaurs known primarily from the late Cretaceous including some of the largest known flying animals of all time.