It is connected to the quadratojugal and maxilla, as well as other bones, which may vary by species.
12.
Hapsidopareiontids are characterized by a large temporal embayment near the cheek region in which the quadratojugal is greatly reduced or absent.
13.
Bathyotica has several apomorphies, characteristics that distinguish it from more quadrate and quadratojugal bones at the back of the skull.
14.
The ascending branch of the quadratojugal has at its lower rear a tongue-shaped process overlapping the rear of the quadrate.
15.
The quadratojugal joined the squamosal and sealed up the lateral temporal fenestra from the ancestral species ( " Paraplacodus " ).
16.
It was usually assumed that the top rear element of the skull was the supratemporal bone while the squamosal and quadratojugal were sometimes fused.
17.
The size and development of the quadratojugal seems to contradict Chatterjee's assertion that this bone contacted the quadrate via a highly mobile pin joint.
18.
The back of the skull was rather high, with a very large and high jugal and quadratojugal closing off a highly positioned small infratemporal fenestra.
19.
Another distinguishing feature of " Perryella " is the presence of two small projections on the quadratojugal bone at the back of the skull.
20.
The nasal branch of the maxilla is elongated and constructed like an inverted L . The branch of the jugal towards the quadratojugal is vertically deep.
