Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- proper noun archaic the
clade originating with the last common ancestor of extanteutherians ; a formertaxonomic subclass withinclass Mammalia .
Etymologies
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Examples
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The early Placentalia would inherit from the Monotreme-like ancestors the development of the milk glands after ovulation, although no sucking was taking place while the young were inside the uterus.
Hormones and Heredity J. T. Cunningham 1897
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Placentalia, Placentata, or Placental MammalsSee MAMMALIA.
Glossary of the Principal Scientific Terms Used in the Present Volume 1909
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