facial suturesの例文

例文

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1. In most groups facial sutures on the cephalon helped facilitate moulting.
2. They are believed to have never developed facial sutures, having pre-dated their evolution.
3. The facial sutures converge on the front border at the midline.
4. Some other later trilobites also lost facial sutures secondarily.
5. All Olenellina lack facial sutures ( see below ), and this is thought to represent the original state.