Dentition whether or not it has erupted. Regarding premolars, there is disagreement regarding whether the third type of deciduous tooth is a premolar (the general consensus among mammalogists) or a molar (commonly held among human anatomists). There is thus some discrepancy between nomenclature in zoology and in dentistry. This is because the terms of human dentistry, which have generally prevailed over time, have not included mammalian dental evolutionary theory. There were originally four premolars in each quadrant of early mammalian jaws. However, all living primates have lost at least the first premolar. "Hence most of the prosimians and platyrrhines have three
For Lack of a Better Name For Lack of a Better Name For Lack of a Better Name is the fourth studio album by Canadian electronic music producer Deadmau5. It was released on September 22, 2009 in the United States and Canada by Ultra Records and Mau5trap and internationally on 5 October 2009 by Virgin Records. The album features collaborations with MC Flipside ("Hi Friend!") and Rob Swire of Pendulum ("Ghosts 'n' Stuff"). The album also contains the critically acclaimed song "Strobe". It is deadmau5's first album to be released internationally on the Virgin Records label. A music video for "Ghosts 'n' Stuff" was released in