Found in what's now Nova Scotia, the 20-cm-long Hylonomus fed on insects and snails, using rows of sharp teeth on both its top and bottom jaws.

发现于现在的新斯科舍省， 这种 20 厘米长的 Hylonomus 以昆虫和蜗牛为食，上下颌都有一排锋利的牙齿。