keratinous造句

• The researchers call the material a nonantigenic keratinous protein colloid.
• It was supported internally by collagen fibres and externally by keratinous ridges.
• If horns are keratinous, they have a bone core.
• Maybe this rugose brow ridge supported a keratinous or scaly structure for displays.
• The Nariscene are described as six-limbed insectiles covered with keratinous shells.
• The keratinous leaves, ovoid or oval, are 5 12 cm long.
• The jaws may have borne a keratinous sheath.
• These are reduced to stiff, keratinous quills, like porcupine quills, with no barbs.
• All three species have a keratinous skin-covered casque on their heads which grows with age.
• The keratinous shield thought to have covered the tip of the snout would have provided further protection.
• It has been isolated from animal dungs, soil, and keratinous surfaces of live or deceased animals.
• The inflammatory processes lead to the formation of keratinous plugs in skin pores, forming yellowish cysts and dark pustules.
• The authors concluded that the osteoderms of all basal armoured dinosaurs were covered in a tough, probably keratinous layer of skin.
• Soft tissue impressions also show that the small bony crests were extended by a much larger structure made of a keratinous material.
• A keratinous spur on the rear leg may have been used to deliver poison, like the spur of the living platypus.
• Though horn cores are blunt, they may have had a similar form to modern bovid horns if there was a keratinous covering.
• As suggested by their name, these frogs have hard, keratinous protrusions present on their feet, which help them to dig.
• As keratinous crests are known in phytosaurs, it is possible that " M . planirostris " had soft tissue ornamentation.
• A darkened soft-tissue structure was also found near the jugal horn; this may represent a keratinous sheath or a skin flap.
• These two fossil skulls had soft tissue preservation, and both had keratinous beaks with vertical grooves extending ventrally from the bony upper mandible.