The skull of Anaschisma differs from the skulls of other closely related organisms in a few key ways.
It is wider overall and features eye sockets that are very anterior and forward oriented, more so than its contemporaries.
Also, the skull has prominent slime canals, which are used for transporting mucus, as well as large external nares.
In addition, the upper jaw is relatively weak and thin, used only for holding teeth.
Their large jaws could have held many teeth at once, maybe even over 100 on each side of the upper and lower jaws, but the actual number varies constantly over the animal's lifetime due to natural causes such as fighting, eating, disease, etc.
The sheer size of the skull is one of the most defining traits for the genus Anaschisma.

Other more minor skull traits characterize Anaschisma as well: elongation of the lachrymal, shortening of the prefrontal, reduction of the interclavicle, and the most characteristic is the center lachrymal entering margin of the orbit.
While the shortened prefrontal is a characteristic of the family Metoposauridae, it is shorted even more in Anaschisma.
The interclavicle is reduced in the way that it has many hexagonal pits as well as grooves and ridges.
The skull of Anaschisma is also covered in this reticulate ornamentation.
Some researchers believe that Anaschisma has a shorter posterior process of the interclavicle, which may discriminate it from other closely related species, while others believe that there is not enough information to make that distinction.
Anaschisma also has ossified opisthotics, the more posterior of the bones surrounding the inner ear.

 
Anaschisma had sharp, pointy teeth for catching and killing prey.
They had marginal teeth as well as larger teeth on the palate, specifically palatine and ectopterygoid teeth.
They had two basic types: large with shallow grooves and small with deeper grooves.
These grooves run lengthwise down the teeth and aided the animals in catching prey.
The teeth are elongated labio-lingually at their base and opposite, mediodistally, at their tip.
In the middle, they are not elongated either way but instead circular.
These dental adaptations enhanced the ability of Anaschisma to capture prey; the teeth are optimized for piercing prey and not allowing it to escape, resisting the bending force applied by the struggling organism, and propagating cracks in the hard parts of the object, such as bone, allowing for easier eating and digestion.

Anaschisma had a wide, wedge-shaped, powerful tail to assist it with swimming, hunting and likely defense.
It was not long like the crocodiles of today, but more likely short and strong to enable it to quickly spring up from hiding and capture prey before it escapes.
The legs of Anaschisma display a sprawling stance and short legs with 4-digits on the front and 5 on the back limbs.
Koskinonodon likely spent a lot of time motionless, waiting for prey, so small, stubby legs are adaptive.
The skull of Anaschisma differs from the skulls of other closely related organisms in a few key ways. It is wider overall and features eye sockets that are very anterior and forward oriented, more so than its contemporaries. Also, the skull has prominent slime canals, which are used for transporting mucus, as well as large external nares. In addition, the upper jaw is relatively weak and thin, used only for holding teeth. Their large jaws could have held many teeth at once, maybe even over 100 on each side of the upper and lower jaws, but the actual number varies constantly over the animal's lifetime due to natural causes such as fighting, eating, disease, etc. The sheer size of the skull is one of the most defining traits for the genus Anaschisma.
Other more minor skull traits characterize Anaschisma as well: elongation of the lachrymal, shortening of the prefrontal, reduction of the interclavicle, and the most characteristic is the center lachrymal entering margin of the orbit. While the shortened prefrontal is a characteristic of the family Metoposauridae, it is shorted even more in Anaschisma. The interclavicle is reduced in the way that it has many hexagonal pits as well as grooves and ridges. The skull of Anaschisma is also covered in this reticulate ornamentation. Some researchers believe that Anaschisma has a shorter posterior process of the interclavicle, which may discriminate it from other closely related species, while others believe that there is not enough information to make that distinction. Anaschisma also has ossified opisthotics, the more posterior of the bones surrounding the inner ear.
 
Anaschisma had sharp, pointy teeth for catching and killing prey. They had marginal teeth as well as larger teeth on the palate, specifically palatine and ectopterygoid teeth. They had two basic types: large with shallow grooves and small with deeper grooves. These grooves run lengthwise down the teeth and aided the animals in catching prey. The teeth are elongated labio-lingually at their base and opposite, mediodistally, at their tip. In the middle, they are not elongated either way but instead circular. These dental adaptations enhanced the ability of Anaschisma to capture prey; the teeth are optimized for piercing prey and not allowing it to escape, resisting the bending force applied by the struggling organism, and propagating cracks in the hard parts of the object, such as bone, allowing for easier eating and digestion.
Anaschisma had a wide, wedge-shaped, powerful tail to assist it with swimming, hunting and likely defense. It was not long like the crocodiles of today, but more likely short and strong to enable it to quickly spring up from hiding and capture prey before it escapes. The legs of Anaschisma display a sprawling stance and short legs with 4-digits on the front and 5 on the back limbs. Koskinonodon likely spent a lot of time motionless, waiting for prey, so small, stubby legs are adaptive.
Anaschisma