translation.en: Or maybe even rivers, mountains, trees -- landscape features, possibly like this black penniform surrounded by strange bell-shaped signs from the site of El Castillo in Spain. The term penniform means "feather-shaped" in Latin, but could this actually be a depiction of a plant or a tree?
translation.zh: 也有可能代表河流、山川、树木等地貌特征。 比如，这些在西班牙埃尔卡斯蒂约发现的 被奇怪的钟形符号环绕的 黑色羽毛状图形。 “penniform”在拉丁语里就是“羽毛状”的意思。 但它是不是也有可能代表草木或树木？