prototheria การใช้

• *Class Prototheria, Infraclass Ornithodelphia, Order Monotremata.
• Huxley's Prototheria-Metatheria-Eutheria is almost a renaming of the older system.
• A variant of the Prototheria-Metatheria-Eutheria system is the Prototheria-Theria system.
• A variant of the Prototheria-Metatheria-Eutheria system is the Prototheria-Theria system.
• The most ancestral forms in the class Mammalia are the egg-laying mammals in the subclass Prototheria.
• The Prototheria-Metatheria-Eutheria system has a number of miniscule differences from the Monotremata-Marsupialia-Placentalia system.
• Logically, under the Prototheria-Theria scheme, the infraclass of Prototheria corresponding to Eutheria and Metatheria should also be called Prototheria.
• Logically, under the Prototheria-Theria scheme, the infraclass of Prototheria corresponding to Eutheria and Metatheria should also be called Prototheria.
• Logically, under the Prototheria-Theria scheme, the infraclass of Prototheria corresponding to Eutheria and Metatheria should also be called Prototheria.
• Eutheria means'true beasts', reflecting a feeling that placentals were'superior'in the evolutionary line over Prototheria and Metatheria.
• Within mammalia, "'TMEM239 "'orthologs are found in organisms belonging to eutheria and metatheria, but not prototheria.
• McKenna & Bell 1997 ) prefer to maintain the name Prototheria as a fitting contrast to the other group of living mammals, the Theria.
• The two infraclasses of Theria in the Prototheria-Theria system may also be " Marsupialia " and " Placentalia ".
• Huxley s system, in which The three subclasses are Prototheria, Metatheria, and Eutheria, rather than Monotremata, Marsupialia, and Placentalia.
• Prototheria means'first beasts', a reference to the fact that monotremes were the first mammals and the closest to mammals'reptilian ancestors.
• Theria and Prototheria makes the most sense because Prototheria avoids confusion with its infraclass / order Monotremata .-- Ingoolemo 06 : 29, 30 May 2004 ( UTC)
• Theria and Prototheria makes the most sense because Prototheria avoids confusion with its infraclass / order Monotremata .-- Ingoolemo 06 : 29, 30 May 2004 ( UTC)
• In some classifications, extant mammals are divided into two subclasses : the Prototheria, that is, the order Monotremata; and the Theria, or the infraclasses Metatheria and Eutheria.
• The Prototheria-Theria system is consistent with'evolutionary classification', in which the organisms in a taxon are more closely related to each other than those in other taxa.
• "' Monotremes "'are basal mammals that lay eggs ( Prototheria ) instead of giving birth to live young like marsupials ( Metatheria ) and placental mammals ( Eutheria ).