Eutheria

(redirected from Placental mammals)
Also found in: Thesaurus, Medical, Encyclopedia.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Eutheria - all mammals except monotremes and marsupials
class Mammalia, Mammalia - warm-blooded vertebrates characterized by mammary glands in the female
eutherian, eutherian mammal, placental, placental mammal - mammals having a placenta; all mammals except monotremes and marsupials
Insectivora, order Insectivora - shrews; moles; hedgehogs; tenrecs
Cetacea, order Cetacea - an order of Eutheria
order Sirenia, Sirenia - an animal order including: manatees; dugongs; Steller's sea cow
Carnivora, order Carnivora - cats; lions; tigers; panthers; dogs; wolves; jackals; bears; raccoons; skunks; and members of the suborder Pinnipedia
Fissipedia - in some classifications considered a suborder of Carnivora
order Tubulidentata, Tubulidentata - an order of Eutheria
Chiroptera, order Chiroptera - an old order dating to early Eocene: bats: suborder Megachiroptera (fruit bats); suborder Microchiroptera (insectivorous bats)
Lagomorpha, order Lagomorpha - rabbits; hares; pikas; formerly considered the suborder Duplicidentata of the order Rodentia
order Rodentia, Rodentia - small gnawing animals: porcupines; rats; mice; squirrels; marmots; beavers; gophers; voles; hamsters; guinea pigs; agoutis
Hyracoidea, order Hyracoidea - hyraxes and some extinct animals
order Perissodactyla, Perissodactyla - nonruminant ungulates: horses; tapirs; rhinoceros; extinct forms
Artiodactyla, order Artiodactyla - an order of hooved mammals of the subclass Eutheria (including pigs and peccaries and hippopotami and members of the suborder Ruminantia) having an even number of functional toes
Edentata, order Edentata - order of mammals having few or no teeth including: New World anteaters; sloths; armadillos
order Pholidota, Pholidota - pangolins; in some former classifications included in the order Edentata
order Primates, Primates - an animal order including lemurs and tarsiers and monkeys and apes and human beings
order Scandentia, Scandentia - a small order comprising only the tree shrews: in some classifications tree shrews are considered either primates (and included in the suborder Prosimii) or true insectivores (and included in the order Insectivora)
Dermoptera, order Dermoptera - flying lemurs
order Proboscidea, Proboscidea - an order of animals including elephants and mammoths
Ailuropodidae, family Ailuropodidae - in some classifications considered the family comprising the giant pandas
class - (biology) a taxonomic group containing one or more orders
Translations
References in periodicals archive ?
What's more, energy-draining organs such as the brain, liver and kidneys are relatively smaller in pandas than in other placental mammals.
It is also known that AHR evolved endometrium-specific expression early in the mammalian ancestor and acquired the ability to repress estrogen signalling necessary for implantation only in placental mammals.
As the eggshell was lost and live birth evolved in the common ancestor to marsupials and placental mammals, more than 1,000 genes were turned on, many of which were strongly linked to the establishment of maternal-fetal communication.
Placental mammals today include humans and all other mammals except those that lay eggs or have pouches (marsupials).
Placental mammals are the largest of the mammal groups and nourish offspring through the placenta.
Summary: TEHRAN (FNA)- An international team of scientists has generated the most comprehensive tree of life to date on placental mammals, which are those bearing live young, including bats, rodents, whales and humans.
This gene, ZBED6, was previously unknown, but the research team soon discovered that it was unique to the placental mammals, including us humans.
He covers the late Cretaceous nonavian dinosaur record, in the shadow of nonavian dinosaurs, in search of the most ancient Eutherian ancestors of placental mammals, patterns and causes of extinction at the K/T boundary, and when and whence mammals after the impact.
Evolution of island mammals; adaptation and extinction of placental mammals on islands.
Researchers found brain size in marsupials and placental mammals correlated with length of maternal care.
This had to occur after the time of the common ancestor of mammals and birds/reptiles (310 million years ago), and before the time of the common ancestor of placental mammals and marsupials (eutherians; 145 million years ago), because both placental mammals and marsupials have XY sex determination with SRY determining maleness.
Even further back is found a common ancestor with all placental mammals about 60 million to 80 million years ago.