Karauridae
The Karauridae are a family of stem-group salamanders that are known from the Middle Jurassic to Early Cretaceous in Central Asia, Northern Asia and Western Europe. The family includes four members: Karaurus from the Middle-Late Jurassic Karabastau Formation of Kazakhstan, Kokartus from the Middle Jurassic Balabansai Formation of Kyrgyzstan, Marmorerpeton from the Middle Jurassic Forest [Marble Formation] of England and Kilmaluag Formation of Scotland, and Kuzbassia from the Early Cretaceous Ilek Formation. The members are some of the oldest known salamanders. The family is united by several morphological characters, including sculptured skull roof bones, bicapitate ribs, and an irregular interparietal seam. Like some modern salamanders, karaurids were neotenic. Members of the family likely fed via suction feeding on small fish and invertebrates. The Early Cretaceous Siberian Kulgeriherpeton has been suggested to be a karaurid by some authors.