Anterior border of prootic descends beneath prootic incisure without forming shelf. The angular incisure (or angular notch) is a small notch on the stomach. This is seen histologically as the Schmidt-Lantermann incisure. Anterior border of prootic forms shelf beneath prootic incisure, then descends abruptly to basisphenoid. Unlike "Slaugenhopia", "Kourerpeton" lacks an incisure, or notch, on the pterygoid bone of the palate.