dentary, so it is a 'predentary'. The upper half of the beak is the 'premaxilla' on the end of the upper jaw. The beak is a key adaptation for cropping...

possession of an upper jaw and a well developed upward pointing process on the premaxilla. They have small mouths. The body usually has dermal plates. Here are...

They have large thumbs and no projecting spine. The alary process of the premaxilla does not split into two pieces like it does in some other frogs. Scientists...

triggerfish. It is a small fish, usually less than 2.3 kg (5.1 lb). The premaxilla and maxilla form a robust unit and this in turn is attached by a ligament...

ornithischia. This bone also supported a beak similar to the one found on the premaxilla. All the teeth in the lower jaw were found on the dentary bone. Heterodontosaurids...

are known from Oxalaia. The first is the tip of its snout, called the premaxilla bone. The second is a piece of its left maxilla, or main upper jaw bone...