That is, one of its ‘baby teeth’, the second premolar, instead of being lost, was withdrawn and turned so it buttressed a large adult tooth, the third premolar .
All rodents have a single pair of upper and a single pair of lower incisors, followed by a gap, followed by one or more molars or premolars .
Behind the canines are the premolars , or bicuspids.
It consists of isolated upper and lower premolars and molars as well as upper and lower dental series with good preservation.
The well-preserved teeth - incisors, canines, premolars , and molars - look to have been ideal for feeding on fish and aquatic invertebrates, somewhat like the teeth of modern seals.
In the mandible, there are, in front, four incisors, two canines, four premolars , and six molars behind.
The normal permanent dentition comprises four incisors, two canines, four premolars , and six molars in each jaw.
It is common knowledge that the tongue partly rests between the bones that form the jaw, and to be more precise, between the dental rows (incisors, canines, premolars and molars) and on the floor of the mouth.