What do sea turtle boots look like from crocodile boots?

Sea turtle hides consist of circular/hexagon type figures in them. Obviously each hide is different. They are dark brown in color (I have seen hundreds of them and always in the same color). The difference between sea turtle and crocodile is that the croc imprints are square/rectangular. They also have multiple "spines" in them. They are very very different so you should look up pictures.