Definitions
from The Century Dictionary.
- A name proposed by Gill in 1872 for one of the major groups of the Mammalia, consisting of the Monotremata alone, as distinguished from the Eutheria: coextensive with Ornithodelphia.
- Those unknown primitive mammals which are the hypothetical ancestors of the monotremes: synonymous with Promammalia.
from the GNU version of the Collaborative International Dictionary of English.
- noun plural (Zoöl.) Same as
monotremata .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- proper noun A taxonomic
subclass within theclass Mammalia — theegg -laying mammals .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun echidnas; platypus
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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Monotremes are sometimes called Prototheria, in contrast with Metatheria (marsupials) and Eutheria (placental mammals).
Archive 2006-09-01 2006
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Monotremes are sometimes called Prototheria, in contrast with Metatheria (marsupials) and Eutheria (placental mammals).
Monotremata 2006
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To him are due not only the names, but the idea, that the mammalian animals fall into three grades of ascending complexity of organisation: the reptile-like Prototheria, which lay large eggs, and which have many other reptilian characters; the Metatheria, or marsupial animals; the
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To him are due not only the names, but the idea, that the mammalian animals fall into three grades of ascending complexity of organisation: the reptile-like Prototheria, which lay large eggs, and which have many other reptilian characters; the Metatheria, or marsupial animals; the Eutheria, or higher animals, which include all the common animals from the mole or rabbit up to man.
Thomas Henry Huxley A Sketch Of His Life And Work Mitchell, P Chalmers 1900
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If these bodies are formed only in Mammals which have uterine gestation, and not in Prototheria, they cannot be the only essential source of the hormone which stimulates the development of the milk glands, since the latter develop in Prototheria.
Hormones and Heredity J. T. Cunningham 1897
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In the earliest stage represented by the Monotremata or Prototheria, there was no intra-uterine development.
Hormones and Heredity J. T. Cunningham 1897
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Huxley afterwards gave them the names of Prototheria, Metatheria, and
The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876
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