can you name some of the first species of this class who lived on planet earth?
It included crocodylomorphs, the pterosaurs ,the dinosaurs and arge cynodonts like "Trucidocynodon" and traversodontids
Mammal
arly Triassic, most medium to large land carnivore niches were taken over by archosaurs which, over an extended period (35 million years), came to include the crocodylomorphs, the pterosaurs and the dinosaurs; however, large cynodonts like "Trucidocynodon" and traversodontids still occupied large sized carnivorous and herbivorous niches respectively. By the Jurassic, the dinosaurs had come to dominate the large terrestrial herbivore niches as well.
where is the cliturous located on a woman It is at the front junction of the labia minora (inner lips), above the opening of the urethra what is the function of this organ? It acts as a primary anatomical source of human female sexual pleasure. and what is the biological process through which this is achieved? Through sexual reproduction is it present in the female species of all animals? It is present in mammals, ostriches and a limited number of other animals. who identified it for the first time? UNANSWERABLE what are the distinguishing features of the class of animals you just mentioned? They are a group of vertebrate animals constituting the class Mammalia (), and characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones.
wiki:25655874
Mammal [SEP] First mammals
This also applies to the multituberculates. They are apparently an ancestral feature, which subsequently disappeared in the placental lineage. These epipubic bones seem to function by stiffening the muscles during locomotion, reducing the amount of space being presented, which placentals require to contain their fetus during gestation periods. A narrow pelvic outlet indicates that the young were very small at birth and therefore pregnancy was short, as in modern marsupials. This suggests that the placenta was a later development.