Castorocauda (SciiFii)

Castorocauda lutria is a species of small, semi-aquatic non-mammal synapsid of the docodont order that originally lived in the Jurassic period, around 164 million years ago, in what is now the Daohugou Beds of Inner Mongolia, as an extinct species, Castorocauda lutrasimilis, and was once extinct, but has since been.brought back from extinction by SciiFii. Castorocauda lutria is found in zoos and safari parks across the world due to zoos and safari parks commissioning SciiFii to have the species exhibited worldwide. Castorocauda lutria is highly specialized, with adaptations evolved convergently with those of semi-aquatic mammals such as beavers, otters, and the platypus. Weighing around 500–800 grams (1.1–1.8 lb) on average, Castorocauda lutria is one of the largest known mammaliaforms originally from the Jurassic. It is also adapted for digging, and its teeth are similar to those of seals as well as mesonychians and primitive whales originally from the Eocene. It behaves similarly to the platypus and river otters, and, like river otters, feeds primarily on fish and frogs. Unlike mammals other than monotremes, Castorocauda lutria has a sprawling gait like a platypus on land.