Docodont facts for kids
Quick facts for kidsDocodonta
They had sophisticated molars, from which the suborder gets its name. In the fossil record, isolated teeth and bits of jawbones are found.
Because of their molars and their lower jaw being a single bone (the dentary), they are generally regarded as mammals. However, those authors who limit the term "Mammalia" to the (living) crown group exclude docodonts. They use the term mammaliaformes instead.
Castorocauda is important because the first find was an almost complete skeleton (a real luxury in paleontology). It breaks the "small nocturnal insectivore" stereotype. It was noticeably larger than most Mesozoic mammaliaform fossils, and gives absolutely certain evidence of hair and fur. Of course, this strongly suggests mammalian-type temperature regulation.
Docodont Facts for Kids. Kiddle Encyclopedia.