quadratojugal bone造句

• Squamates ( lizards and snakes ) lack a quadratojugal bone.
• The quadratojugal bone is a small bone between the cheek and otic notch.
• Bathyotica has several apomorphies, characteristics that distinguish it from more quadrate and quadratojugal bones at the back of the skull.
• Another distinguishing feature of " Perryella " is the presence of two small projections on the quadratojugal bone at the back of the skull.
• They had anteriorly placed neural arches, expanded distal blades, irregularly shaped coracoids, and ventral triangular projections on the anterior ramus of their quadratojugal bones.
• The remains include the lower jaw and back half of the skull, along with neck and back vertebrae, and various limb elements . " Animantarx " is characterized by a unique combination of features, including a highly domed skull back, small horns on the postorbital and quadratojugal bones of the skull, and a mandible which is only armoured on half of its length.
• Several features indicate that " Smok " is an archosaur, including serrated teeth, a contact between the jugal and quadratojugal bones at the back of the skull, a hole in front of the eye socket called the antorbital fenestra, maxillae bones in the upper jaw that connect along their palatal processes, and a rounded projection on the upper part of the femur bone.
• However, the notch in " Cryobatrachus " is unusual in that it is crescent-rather than oval-shaped and that it ends in a sharp point rather than a rounded margin . " Cryobatrachus " can be distinguished from another group of Triassic temnospondyls called capitosaurians in that its quadratojugal bones ( which make up the back of the upper jaws ) end at the level of the tabular horns ( which project from the back of the skull roof ).