The cemita is a torta originally from Puebla, Mexico. Also known as cemita poblana, it derives from the city (and region) of Puebla. The word refers to the sandwich as well as to the roll it is typically served on, a bread roll covered with sesame seeds.
For some Mexicans, the shape of the rolled tortilla is the determining factor: flautas are carefully rolled to be round (and cooked in abundant oil in order to keep that shape), while taquitos use a twice-folded tortilla rather than a rolled one, making for a somewhat flattened product that can easily be fried in much less oil.
Now, in Mexico, there is another close relative to the authentic Mexican pork carnitas called “cochinita pibil“, a dish of Mayan origin cooked with achiote paste and herbs. The traditional way of cooking this dish is by seasoning the pig and burying it in the ground.