Metatheria

Monotremes are sometimes called Prototheria, in contrast with Metatheria (marsupials) and Eutheria (placental mammals).

Archive 2006-09-01 2006

Monotremes are sometimes called Prototheria, in contrast with Metatheria (marsupials) and Eutheria (placental mammals).

Monotremata 2006

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

Thomas Henry Huxley; A Sketch Of His Life And Work 1904

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

Huxley afterwards gave them the names of Prototheria, Metatheria, and

The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876

Most zoologists would be surprised to hear that, in a few features, lagomorphs resemble marsupials more than they do placentals, and it’s on the basis of these features that some workers have actually suggested that lagomorphs might be close kin of marsupials (albeit not necessarily members of Marsupialia or even Metatheria).

Archive 2006-05-01 Darren Naish 2006