Eutheria

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Related to Eutherians: metatherians, prototherians

Eu·the·ri·a

(yū-thē'rē-ă),
A subclass of mammals, excluding monotremes and marsupials, having a placenta through which the young are nourished.
[eu- + G. thērion, animal]
Farlex Partner Medical Dictionary © Farlex 2012

Eutheria

(ū-thēr′ē-ă)
A subclass of mammals with a true placenta.
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
LTR retrotransposon-derived genes in eutherians and marsupials.
(25) The reason for this difference remains unclear, but it should be noted that many pseudogenes are observed in the marsupial genomes and almost none in the eutherian genomes, suggesting that the eutherians have a better ability to use the LTR retrotransposons for novel purposes.
Eutherian mammals have an XY system where SRY on the Y determines maleness, so XXY is male and XO is female.
In female Eutherian (placental) mammals, one copy of the X chromosome in every cell is inactivated, due to the activity of the Xist gene.
Relatively complete developmental series of five eutherians, Mus musculus (Rodentia), Felis domestica (Carnivora), Sus scrofa (Artiodactyla), Manis javanica (Pholidota), and Tupaia javanica (Scandentia), and four metatherians, Monodelphis domestica (Didelphidae), Macropus eugenii (Macropodidae), Dasyurus viverrinus (Dasyuridae), and Perameles nasuta (Peramelidae) were examined.
The zhelestid mammals are characterized by a crushing-grinding dietary adaptation related to an early herbivorous trend among eutherians. The Lainodontinae (Zhelestidae) is the most diverse and dominant taxon in the Late Cretaceous mammalian faunas of Western Europe, by contrast to Central European sites that include only kogaionid multituberculates (Kielan-Jaworowska et al., 2004; Gheerbrant and Astibia, 2012).
"In eutherian mammals, the sex chromosomes contain an additional region of DNA whereas, in the egg-laying mammals and marsupials, this additional region of DNA is located on the non-sex chromosomes," said Makova.
based on DLW studies of 46 eutherian species, the equation of Nagy (1987) predicts a FMR of 4873.3 kJ/d for aardwolves in summer (mean body mass = 7768 g), whereas for these animals in winter (mean body mass = 8543 g), it yielded a value of 5265.0 kJ/d.
"During gestation, eutherian young interact with their mother through a placenta, a complex organ that connects the embryo with the uterus" --"What is a Mammal?" Encyclopedia of Life John, my first child, turned slowly like a rotisserie chicken or like a smooth ball rolling up out of the water.
Moreover, evolutionary history of the beta globin gene in eutherian taxa is quite intriguing and perplexing.
Uniformity in relative proportions among skull, axial skeleton, and limbs is maintained across the larger carnivorous marsupials (Keast 1982), and on skull dimensions Dasyurus, Sarcophilus, and Thylacinus group together, distinct from the families of eutherian carnivores (Werdelin 1986).
Langer comparatively analyzes the anatomy of the stomach, small intestine, caecum, and colon of most eutherian orders and suborders of placental mammals.