Megabats have large orbits, which are bordered by well-developed postorbital processes posteriorly.
The postorbital processes sometimes join to form the postorbital bar.
The snout is simple in appearance and not highly modified, as is seen in other bat families.
The length of the snout varies among genera.
The premaxilla is well-developed and usually free, meaning that it is not fused with the maxilla; instead, it articulates with the maxilla via ligaments, making it freely movable.
The premaxilla always lack a palatal branch.
In species with a longer snout, the skull is usually arched.
In genera with shorter faces (Penthetor, Nyctimene, Dobsonia, and Myonycteris), the skull has little to no bending.

The number of teeth varies among megabat species; totals for various species range from 24 to 34.
All megabats have two or four each of upper and lower incisors, with the exception Bulmer's fruit bat (Aproteles bulmerae), which completely lacks incisors, and the São Tomé collared fruit bat (Myonycteris brachycephala), which has two upper and three lower incisors.
This makes it the only mammal species with an asymmetrical dental formula.

All species have two upper and lower canine teeth.
The number of premolars is variable, with four or six each of upper and lower premolars.

The first upper and lower molars are always present, meaning that all megabats have at least four molars.
The remaining molars may be present, present but reduced, or absent.
Megabat molars and premolars are simplified, with a reduction in the cusps and ridges resulting in a more flattened crown.

Like most mammals, megabats are diphyodont, meaning that the young have a set of deciduous teeth (milk teeth) that falls out and is replaced by permanent teeth.
For most species, there are 20 deciduous teeth.
As is typical for mammals, the deciduous set does not include molars.
Megabats have large orbits, which are bordered by well-developed postorbital processes posteriorly. The postorbital processes sometimes join to form the postorbital bar. The snout is simple in appearance and not highly modified, as is seen in other bat families. The length of the snout varies among genera. The premaxilla is well-developed and usually free, meaning that it is not fused with the maxilla; instead, it articulates with the maxilla via ligaments, making it freely movable. The premaxilla always lack a palatal branch. In species with a longer snout, the skull is usually arched. In genera with shorter faces (Penthetor, Nyctimene, Dobsonia, and Myonycteris), the skull has little to no bending.
The number of teeth varies among megabat species; totals for various species range from 24 to 34. All megabats have two or four each of upper and lower incisors, with the exception Bulmer's fruit bat (Aproteles bulmerae), which completely lacks incisors, and the São Tomé collared fruit bat (Myonycteris brachycephala), which has two upper and three lower incisors. This makes it the only mammal species with an asymmetrical dental formula.
All species have two upper and lower canine teeth. The number of premolars is variable, with four or six each of upper and lower premolars.
The first upper and lower molars are always present, meaning that all megabats have at least four molars. The remaining molars may be present, present but reduced, or absent. Megabat molars and premolars are simplified, with a reduction in the cusps and ridges resulting in a more flattened crown.
Like most mammals, megabats are diphyodont, meaning that the young have a set of deciduous teeth (milk teeth) that falls out and is replaced by permanent teeth. For most species, there are 20 deciduous teeth. As is typical for mammals, the deciduous set does not include molars.
Megabat