Krusatodon is a genus of extinct docodont mammaliaform from the Middle Jurassic of the United Kingdom.

[1][2] The name Krusatodon honours the German zoologist and palaeontologist Dr. Georg Krusat, who carried out important research on docodonts and other early mammals.

[1] Prior to 2024, Krusatodon was mainly known from a handful of individual molar teeth, and an undescribed jaw.

Adult individuals were relatively small-sized compared to living mammals, with a body mass of 54–156 grams (0.119–0.344 lb).

[3] Analysis of tooth histology suggests that Krusatodon had relatively long lives compared to modern mammals of similar size, with the adult skeleton described in 2024 estimated to have been 7 years old at the time of death.