The larva is elongated, usually cylindrical. They are elongated with transversely constricted bodies. These are axially arranged chambers placed under elongated mounds. Basal Ichthyopterygia already had elongated, triangular skulls. Like the nose, the ears are elongated and oblong in form. Their usual shape is oval to elongated. The eggs are elongated oval in shape, typically long and in diameter. The aluminum will be elongated and maintain the formed shape. The seeds are elongated and almost spherical. Like the snout, the lower jaws are elongated. The jaws are elongated and armed with sharp teeth. The linule is elongated and heart-shaped. The snout was elongated with overhead nostrils and eyes. The mouth is terminal with jaws that are not particularly elongated. The walrus has unique upper canines that are elongated into tusks.