monotreme

• Kollikodon was so different from a previously discovered monotreme, Steropodon, that it's probable that monotremes had taken on many forms long before the Cretaceous. —  F ;SF; - vol 091 issue 01 - July 1996
• No, the label monotreme refers to the order of mammals which lay eggs. —  digg.com: Stories / Popular
• Egg Laying Semi-Aquatic Monotreme: The fact that the Platypus is the only semi-aquatic monotreme that lays eggs truly makes it unique. —  BorkWeb
• The recent release of the platypus genome has provided the first opportunity to perform comparisons between prototherian (monotreme; which appear to lack imprinting) and therian (marsupial and eutherian; which have imprinting) mammals. —  CiteULike: Everyone's library
• This long-extinct Promammal was probably evolved from Proreptiles during the Triassic period, and must certainly be regarded as the monotreme and oviparous ancestor of ALL the mammals If we hold firmly to this fundamental and most important thesis, we shall see the "ape-question" in a very different light from that in which it is usually regarded. —  The Evolution of Man — Volume 2

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