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Mammalia. Linnaeus, 1758. Sottoclassi. Prototheria. Theria. Allotheria †. I mammiferi ( Mammalia Linnaeus, 1758) sono una classe di vertebrati a diffusione cosmopolita caratterizzata dall' allattamento della prole. La classe dei mammiferi conta 5 500 [1] specie attualmente viventi, variabili in forma e dimensioni: dai pochi centimetri e due ...
Placental mammals (infraclass Placentalia / p l æ s ə n ˈ t eɪ l i ə /) are one of the three extant subdivisions of the class Mammalia, the other two being Monotremata and Marsupialia. Placentalia contains the vast majority of extant mammals, which are partly distinguished from monotremes and marsupials in that the fetus is carried in the uterus of its mother to a relatively late stage of ...
e. The evolution of mammals has passed through many stages since the first appearance of their synapsid ancestors in the Pennsylvanian sub-period of the late Carboniferous period. By the mid- Triassic, there were many synapsid species that looked like mammals. The lineage leading to today's mammals split up in the Jurassic; synapsids from this ...
Mammalia. Mamiferes. Li mamiferes ( klase Mammalia) es li klase de vertebrosi animales karakterisat dal presenteso de mamal glandes, kel in females produkte milke por nutrio de yunes. Les es anke karakterisat del presenteso de piles o fure e homeotermi, tu es varmi-sangal, korpores.
Eutheria. Metatheria. Els mamífers (Mammalia) són una classe d' animals vertebrats que es caracteritzen per tenir pelatge, un cervell amb neocòrtex, una orella mitjana amb tres ossos i glàndules mamàries que secreten llet per alimentar les cries.
Los mamíferos ( Mammalia) son una clase de animales vertebrados amniotas homeotermos (de sangre caliente) que poseen glándulas mamarias productoras de leche con las que alimentan a las crías. Datos rápidos Mamíferos, Taxonomía ... La gran mayoría de este grupo son vivíparos (con la excepción de los monotremas: ornitorrinco y equidnas ).
Mammalia. Linnaeus, 1758. Subklompok urip. Monotremata. Theria. Marsupialia. Placentalia. Kéwan nyusoni utawa mamalia iku kelas kéwan vèrtebrata kang mligi kaciri déning anané klanjer susu, kéwan wadon ngasilaké susu minangka sumber panganan anaké; anané rambut; lan awak kang endoterm utawa "getih panas". Utek ngatur sistem peredaran ...
